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Firefox Undocumented Settings Compilation

aceh0 writes "TweakFactor has a Firefox Tweak Guide up that that summarizes some undocumented settings in Firefox and recommended configurations (depending on the computer type and connection speed) for those that don't want to dig through a 17-page thread"

70 comments

  1. Thunderbird? by choi · · Score: 5, Informative

    > Originally called Thunderbird, Firefox ran into
    > some name problems and was renamed Firebird.
    > Running into further name problems, Firebird was
    > renamed to Firefox.

    Someone didn't do his homework right. Actually, Thunderbird is mozilla.org's standalone mailer.

    --
    Browse Slashdot at Funny+5, everything else -5. The only way to sustain it.
    1. Re:Thunderbird? by 1001011010110101 · · Score: 4, Informative

      I think it was Phoenix->Firebird->Firefox

    2. Re:Thunderbird? by Artega+VH · · Score: 1

      And naturally anyone who wanted any credibility at all would bother to do the smallest amount of research and would know it was originally called Phoenix....

      Seriously I don't get whats so hard.. phoenix -> firebird -> firefox..

      all of which are still downloadable including phoenix

      --
      groklaw, wired and slashdot. The holy trinity of work based time wasting.
    3. Re:Thunderbird? by Anonymous Coward · · Score: 0

      they were thinking of Thunderfox.. no wait, that one never existed. oh well :)

    4. Re:Thunderbird? by Anonymous Coward · · Score: 0

      I already emailed this putz.

    5. Re:Thunderbird? by pmsyyz · · Score: 1

      mozilla/browser (m/b) -> Phoenix -> Firebird -> Firefox

      --
      Phillip
    6. Re:Thunderbird? by 1001011010110101 · · Score: 1

      I woudn't agree with that...Mozilla is a different animal, in fact, it still exists. I think they said that at 1.0 Firefox would became Mozilla?

    7. Re:Thunderbird? by Dwonis · · Score: 1

      I think the mistake is understandable, given Firesomething

    8. Re:Thunderbird? by pmsyyz · · Score: 2, Informative

      You misunderstand. "mozilla/browser" does not refer to the Mozilla browser component, it is what Firefox was called before it was called Phoenix.

      --
      Phillip
    9. Re:Thunderbird? by Orick · · Score: 1


      After it's called Phoenix, should it be called the browser formerly known as ashes?

      --
      Oreck Reviews

    10. Re:Thunderbird? by BLAG-blast · · Score: 1
      Mosaic -> Netscape (-> ???? -> profit) -> Mozilla -> Phoenix -> Firebird -> Firefox...

      Excuse me if I've omitted one (or included something that I shouldn't have). (I'm not really sure if Netscape was really derived from Mosaic - but I bet you it was some sort of inspiration).

      --
      M0571y H@rml355.
  2. Awesome stuff by mnoel2 · · Score: 5, Interesting

    (Haven't R'ed TFA)

    I'm a student working in my University's Computing Services department (only Unix geek there -- and almost the only Comp Sci major, too), where we're looking at deploying Linux workstations and whatnot. My boss recently asked me to replace the Win2k image on the Union's email kiosks.

    I was using KDE (wanted Blackbox, but that's a long story), so I figured I'd use Konqueror's kiosk mode lockdown (see here). But after googling around and finding this one for Firefox, I was sold. XUL makes it so easy to modify the interface and ban commands (like bookmarking or opening local files). And my boss was even impressed. (( Dorky '50s ad grin )) Thanks, Mozilla!

    It'll never get me laid though...

    1. Re:Awesome stuff by DrMorris · · Score: 1

      That document is the best one around to 'dumb down' a Mozilla (based) browser. However there are some issues left out. It's a pity that the mozilla.org team is not working on a kiosk mode.

      When I have some more time and get the permissions from my boss I will write a step-by-step HOWTO for making a Mozilla based kiosk browser (on Debian GNU/Linux).

    2. Re:Awesome stuff by mnoel2 · · Score: 1

      Well, the one thing that I'm really left worrying about is protocol handling: that document allows the file:, about:, and a few other protocols. However, this link shows you how to alleviate that problem as well. I'm also kind of worried about what happens whenever the user tries to download a new filetype, and is given the option to save to disk or select a program -- they could, for instance, select Konq or xterm when downloading (say) .Z zipped files, and there's no way I can set up valid rules for every possible file type -- after all, someone could make one up. What I really need is a method of denying any downloads but images, .pdf files, or HTML/text. I'm still looking for a solution, and if I find one, I'll be sure to send you the information.

      It should be somewhat more secure, though, than an unpatched Windows installation using Internet Explorer and Outlook Express. And I'm hoping to beat the computer around for the rest of the week and find new holes to fix before deploying.

    3. Re:Awesome stuff by DrMorris · · Score: 1

      I could solve the issue with unknown/unhandled filetypes, I just had to comment out a few lines of javascript to disable the dialog. Not quite elegant, but it works. I don't have the code right at the hand now, but if you are interested, drop me a mail:
      t.csoegoer AT web.de

    4. Re:Awesome stuff by dook43 · · Score: 1

      LSU, by any chance? (mnoel2, "Computing Services", "Union")

      --
      This comment was randomly generated by a school of piranhas chewing on the PCB of a Microsoft Natural Keyboard.
    5. Re:Awesome stuff by Anonymous Coward · · Score: 0

      Sure enough, though my PAWS login is mnoel4. You work for OCS?

  3. blank page by real_smiff · · Score: 2, Funny

    i just get a blank page (empty space where presumably article should be) in Opera, and in IE. Do you need Firefox to view this page? No wait, what am i doing. On to the next story!

    --

    This is my Sig, this is my Gun. One is for Slashdot and one is for Fun.

    1. Re:blank page by Distinguished+Hero · · Score: 1

      The page renders just fine for me in Opera 7.52, as well as Konqueror 3.2.3 and Firefox.

      --
      Uttering logically derived and empirically supported truths to the disciples of the orthodox establishment.
    2. Re:blank page by Anonymous Coward · · Score: 0

      ah.. something in the formatting of that site isn't compatible with some proxomitron configs. (such a rare problem i'd forgotten about it). sorry, mystery solved.

    3. Re:blank page by Danh · · Score: 1

      I had a blank page when using the (excellent, but windows only) ad-filtering program Proxomitron. Now I really don't like web pages that force me to bypass it.

  4. Poor advice by joebp · · Score: 5, Informative

    This is a poorly written article.

    The changes to, in particular:

    user_pref("network.http.max-connections", 48);
    user_pref("network.http.max-connections-per-server ", 16);


    Is extremely rude and bad practice.

    1. Re:Poor advice by SpaceLifeForm · · Score: 4, Informative
      Yes, those values are too high.

      A side note: The writer mentions that IE had this feature and that Mozilla was slower for that reason. That is not correct. Very old versions of Netscape had this feature.

      --
      You are being MICROattacked, from various angles, in a SOFT manner.
    2. Re:Poor advice by Anonymous Coward · · Score: 0
      Is extremely rude and bad practice.
      Care to explain why to the unwashed masses?
    3. Re:Poor advice by Anonymous Coward · · Score: 0

      It puts excess load on the servers.

    4. Re:Poor advice by LadyLucky · · Score: 1
      Yes.

      IE makes at most two concurrent connections to any given server.

      --
      dominionrd.blogspot.com - Restaurants on
    5. Re:Poor advice by Frizzle+Fry · · Score: 1

      IE uses two by default just like firefox does because the RFC forbids using more (by default). However, the RFC permits using more if there is a compelling reason to do so, which (arguably) includes the fact that the user has hacked around with their configuration to change the number. This is why both IE (google for the MaxConnectionsPerServer registry value) and Firefox give you a way to create a setting to increase it if you really want to, but don't make it easily accessible through the control panel or something similar.

      --
      I'd rather be lucky than good.
  5. Pretty hopeless article by Artega+VH · · Score: 4, Insightful

    First was the whole Firefox used to be called Thunderbird gem...

    The keyboard shortcuts were sorta useful (but I knew most of them anyway and probably won't need to remember more)

    But the "Advanced Configuration Options" consisted of two changes that I consider fluff at best as both are not required at all..

    Then the performance settings seemed to be the same tip rehashed for some reason without actually explaining what each config setting does.. Most unprofessional imho.

    Then the Themes, Extensions and Conclusion was nothing but fluff...

    All in all I rate the article as an underesearched peice of fluff, possible suitable for someone who probably hasn't heard of firefox and hence isn't going to bother with anyone more than the keyboard shortcuts... Why can't people who do these things figure out what their audience is and write to that?

    --
    groklaw, wired and slashdot. The holy trinity of work based time wasting.
    1. Re:Pretty hopeless article by Cragen · · Score: 1
      Perhaps we are *not* their intended audience, even if, at the moment, we ARE the only Firefox audience. Perhaps the writer was doing trying to mimic the "undocumented windows tricks" articles that run rampant (and errant) through the user world.

      Cragen

      Sorry. I can never remember clever jokes or sigs.

  6. Control - U? by eviljav · · Score: 2, Interesting

    The article didn't mention it, but maybe someone here knows:
    Is there a way to set control-U in the MS Windows to work like it does on X? (clearout the URL line, instead of opening up the source view)

    1. Re:Control - U? by Nasarius · · Score: 2, Informative

      Ctrl+U opens the source here on Firefox/KDE/Linux. Maybe you're thinking of Ctrl+K? I don't think that works on Windows.

      --
      LOAD "SIG",8,1
    2. Re:Control - U? by Nasarius · · Score: 2, Informative

      Ah, I see. Ctrl+U does clear out the URL input if that's focused. Nevermind me then.

      --
      LOAD "SIG",8,1
    3. Re:Control - U? by consolidatedbord · · Score: 2, Informative

      Control -U opens the source if you don't have the cursor in the address bar, if it is in the address bar then it will clear out the line.

      I don't think that this is a firefox-specific feature, as I have this available in an xterm, at the console, etc.

      --
      while true ; do echo this is my sig; done
    4. Re:Control - U? by Prowl · · Score: 1

      most common readline bindings (C-u, C-k, C-d, C-h, C-a, C-e) work when a control has input focus

      --
      That man tried to kill mah Daddy
    5. Re:Control - U? by amliebsch · · Score: 1

      Only thing I can suggest is HOME, SHIFT+END, DEL.

      --
      If you don't know where you are going, you will wind up somewhere else.
    6. Re:Control - U? by Anonymous Coward · · Score: 0

      ctrl-l ctrl-k !

  7. Firefox? What about Mozilla Mail? by spacecowboy420 · · Score: 4, Interesting

    Browser tweaks are all fine and good, but I find the real leverage in managing data via "tweaks" is within email. Thunderbird has gobs of extensions and what not - but what about Mozilla Mail? Due to Mozilla Mail handling imap a bit better than Thunderbird, I have my company using Mozilla. Now when it comes to extending Mozilla Mail, you're kinda limited to what you can do. Doing a search for "Mozilla Mail extensions" will turn up tons of results, but invariably seem more directed to Thunderbird. Thunderbird extensions don't always work well within Mozilla Mail. Am I missing something? Is there some hidden repository of Mozilla Mail extensions, or minor tweak you can do to Thunderbird extensions to make them useful within Mozilla Mail?

    --
    ymmv
    1. Re:Firefox? What about Mozilla Mail? by irc.goatse.cx+troll · · Score: 1

      Somewhat offtopic, but what does Mozilla Mail do that Thunderbird does differently regarding IMAP? I ask because I currently use Thunderbird for my IMAP mail and havn't really noticed a problem, though it could be better in some areas.

      --
      Pain lasts, kid. Its how you know you're alive. Sometimes I think this growing up thing is just pain management-TheMaxx
    2. Re:Firefox? What about Mozilla Mail? by spacecowboy420 · · Score: 1

      The main thing was that the "Server is disconnected" notice happens less - only when you try to do something on the server when it has been idle, instead of seemingly every thirty seconds. For some reaseon, my users absoloutley hated this more than anything...I am still looking around to try to squash the message all together.

      --
      ymmv
    3. Re:Firefox? What about Mozilla Mail? by dn15 · · Score: 1

      > The main thing was that the "Server is disconnected" notice happens less

      (note: I am not the person who asked you the question, but I was also wondering.)

      Interesting. Under what conditions does the above message appear? I use Mozilla and Thunderbird with IMAP and I have never seen that even once.

    4. Re:Firefox? What about Mozilla Mail? by vrt3 · · Score: 1

      I've seen that message appear when Mozilla uses more connections to the IMAP-server than the server provides.

      If you control the IMAP-server you can try to increase the number of connections, otherwise make Mozilla (or Thunderbird) use less connections via Edit -> Mail & Newsgroups Account Settings. In the Server Settings for the account, click 'Advanced'. 'Maximum number of server connections to cache' is default 5, try to decrease that value.

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      This sig under construction. Please check back later.
    5. Re:Firefox? What about Mozilla Mail? by spacecowboy420 · · Score: 1

      I do control the server, and I have increased the available connections to 500 (for a 25 user server). I have also set the `cache' to 1. I have poured over performance tuning for Courier Imap to see what I could do to stop this but have been unable to completely eliminate it. It seems to happen mostly when a user is composing a message that may take a while. When the user hits send, a message alerting that the "server is disconnected" and that "the message was unable to be copied to the sent folder" - do you want to retry? You hit yes, and all is fine. It sounds like there is more performance tuning available with my imap server - I will check that out, but I am still curious where the Mozilla Mail extensions are.

      --
      ymmv
    6. Re:Firefox? What about Mozilla Mail? by vrt3 · · Score: 1

      QuoteColors and Enigmail can be found at www.mozdev.org or update.mozilla.org, I don't know if there are any others.

      You're certainly right that either there aren't that many or that they are not visible enough.

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      This sig under construction. Please check back later.
    7. Re:Firefox? What about Mozilla Mail? by spacecowboy420 · · Score: 1

      Thanks, I am already all over the enigmail - Doesn't seem to be much more though :-(

      --
      ymmv
    8. Re:Firefox? What about Mozilla Mail? by jovlinger · · Score: 1

      I dunno what it is about thunderbird, but I find that it gets out of sync with the server much more easily than mozilla mail.

      and when it gets out of sync, there is no way to get it reset state apart from a restart.

      I loved the idea of it, but in my experience thunderbird blows chunks. Gave up after about two week's of trying to get it to work reliably.

      Since others like it, it must be the particular combination of thunderbird, the imap implementation, and the network inbetween that Just Doesn't Work.

  8. Is he sure he knows what he's talking about? by Anonymous Coward · · Score: 0
    H Brings up the history dialogue box on the right. Useful if you closed a page accidentally and forgot the URL. Or to make sure your kids are not looking at pr0n

    He can't even tell the difference between left and right. Why should we trust him telling us how to mess with config files?

    1. Re:Is he sure he knows what he's talking about? by joeljkp · · Score: 1

      It's probably a typo. I doubt he sat there at his keyboard thinking "Hmm, now is this left, or is this right? Let me see..... I'll go with right."

      --
      WeRelate.org - wiki-based genealogy
  9. what I want to know is... by teridon · · Score: 2, Insightful

    How do you keep Firefox from going to search.netscape.com when you type a word into the location bar? (e.g. type "tired" in the location bar doesn't go to "www.tired.com")

    BTW, did you know if you type "a " in the location bar it will do a "I'm feeling lucky" google search?

    --
    I hold it, that a little rebellion, now and then, is a good thing. -- Thomas Jefferson
    1. Re:what I want to know is... by Gogo+Dodo · · Score: 3, Informative

      I'm a bit confused with your post. First you say that the location bar uses search.netscape.com and then you say it uses Google. It's all one configuration, I think.

      The default on my 0.9.2 copy is to do a Google I'm Feeling Lucky search. I changed it by going to about:config, changing keyword.URL and removing the I'm Feeling Lucky button parameter. So the URL looks like:

      http://www.google.com/search?ie=UTF-8&oe=UTF-8&s ou rceid=firefox&q=

    2. Re:what I want to know is... by DrMorris · · Score: 1

      These are two seperate features. The first is not a search, but a "guessed" URL. Firefox tries to guess 'tired.com' (or .net, .org, etc.) from 'tired' so you get to 'www.tired.com'.

      The second one is the normal search feature which you can tweak around with like another poster mentioned.

    3. Re:what I want to know is... by teridon · · Score: 1

      If I type just "tired" in the location bar it goes to this page

      If I type "a tired" it does a Google "...Lucky" search.

      My keyword URL was the default (i.e. Google "Lucky" search). Just for kicks I took the lucky part out, but it still behaves the same before and after.

      --
      I hold it, that a little rebellion, now and then, is a good thing. -- Thomas Jefferson
    4. Re:what I want to know is... by friedegg · · Score: 1

      In about:config, check browser.search.defaulturl. Mine is set to: http://www.google.com/search?lr=&sourceid=firefox& ie=UTF-8&oe=UTF-8&q=

      --
      Google doesn't index user sigs, so stop trying to "Google Bomb" with them.
  10. Explanations would be nice by Gogo+Dodo · · Score: 3, Informative

    How about explanations of what and why you would want to tweak these things? It's all nice to say "Do this," but I want to know what and why these changes are good for.

    I get some of them like the pipelining and max connections (though the settings are not nice), but what do some of the less obvious ones do?

    user_pref("content.notify.backoffcount", 5);
    user_pref("content.max.tokenizing.time", 3000000);

    I think that's a problem with all of these "tweak your browser" things I've read. Nobody ever says why you should tweak something, just that you should.

    1. Re:Explanations would be nice by g-san · · Score: 1

      rtfa. both of them. no shovel required for the second one. (hint hint)

  11. To learn more by dtfinch · · Score: 0, Redundant

    type about:config into your address bar.

  12. Quick configuration change by sabit666 · · Score: 1

    type about:config in the address-bar

  13. WARNING. Tweak Guide Author Doesn't Have Clue by Anonymous Coward · · Score: 0

    user_pref("browser.cache.memory.capacity", 65536);

    A couple settings of note - Firefox is allocated 4096 KB of memory by default and in this configuration we give it roughly 65MB as denoted by the last line. This can be changed according to what is used.


    I wouldn't trust somebody who thinks 65536 bytes is "roughly 65MB" with Firefox advanced settings. Also pipelining is activated without even mentioning that this can lead to problems with old web servers.

    1. Re:WARNING. Tweak Guide Author Doesn't Have Clue by pyro101 · · Score: 0

      I doubt that Firefox could actually run on 65536 bytes of cache. Most webpages won't fit in that small of a cache. So most likely that 65k is in reference to how many kilobytes you want to use hence the 65MB would be the proper number. The only web browser that could servive with a 65kB cache would be lynx.

      As far as the pipelining you got me there I don't know enought to post anything (wish more would think of that before posting)

    2. Re:WARNING. Tweak Guide Author Doesn't Have Clue by _pruegel_ · · Score: 2, Informative

      65536kB is exactly 64MB not 65 or "roughly 65"...

    3. Re:WARNING. Tweak Guide Author Doesn't Have Clue by pyro101 · · Score: 0

      Actually that would be 64MiB just cuz we are talking about data doesn't mean we butcher existing methods of measure.

    4. Re:WARNING. Tweak Guide Author Doesn't Have Clue by Anonymous Coward · · Score: 0

      I thought it was an existing form of measurement.

  14. More than 2 simultaneous downloads; how? by bdipert · · Score: 1

    In IE, I'm able to download up to 15 simultaneous files (either directly via Registry tweaks or through utilities such as IEtweak 2). How can I accomplis the same thing in Firefox 0.92? Thanks in advance for any assistance

    1. Re:More than 2 simultaneous downloads; how? by dq5+studios · · Score: 1

      Download from different sites maybe?
      The only time I have a 2 dl limit is when the site has an anti-leech script to prevent bw abuse and even then it only effects that site and not all my downloads.

  15. Keyboard Shortcuts by lachlan76 · · Score: 2, Insightful

    Power users (lazy people) love keyboard shortcuts and we have a semi exhaustive list of the common ones here

    I don't know if it ever occurs to people that the keyboard is a much better way of doing some things than using the mouse. Really, when you use the mouse, you're just pushing buttons on a virtual keyboard, instead of doing it with your hands on the real keyboard.

    1. Re:Keyboard Shortcuts by Anonymous Coward · · Score: 0

      No. When you use a mouse you're pushing real buttons on a real mouse. Drawing a picture with just the keyboard doesn't work because it doesn't have the combination of analog and digital inputs that the mouse does. Some applications run fine with no keyboard and just need the mouse (like the Gimp). The bad applications are the ones that require you to switch back and forth between the keyboard and mouse.

  16. about by Anonymous Coward · · Score: 0

    The article has a good list of the keyboard shortcuts, but doesn't list all of the "special" URLs that moz uses. The three I know about are:

    about:config Mozilla configuration variables
    about:plugins Installed plugins
    about:mozilla Mozilla whatever

    Are there any others?

    1. Re:about by Smallpond · · Score: 1

      Type about:about to find out.

  17. Interesting easter egg by Anonymous Coward · · Score: 0

    Type this on your mozilla firefox!
    about:mozilla

  18. More than 2 simultaneous downloads, like this... by Anonymous Coward · · Score: 0

    I think you can download more than two at once; the limit is two per server, I think. So if I wanted to download three things from www.download.com for instance, it would only do two at once. But it would do them all if two were from www.download.com and the third were from somewhere else.

    These are the settings which you should change in about:config to change that behavior:

    user_pref("network.http.max-connections", xx);
    user_pref("network.http.max-connections-per- server ", xx);


    You'd want to increase max connections per server, that should let you download more at once from a single server/site. The top one is the total maximum of connections you can have, which should also be higher than simply per server. (Both loading a page and downloading a file counts as a connection, so having it high enough is nice to have everything go smoothly. I have those set as 24 and 8 myself.)