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Mozilla Tests Firefox 'Tab Warming' (bleepingcomputer.com)

Catalin Cimpanu, reporting for BleepingComputer: Mozilla is currently testing a new feature called "Tab Warming" that engineers hope will improve the tab switching process. According to a description of the feature, Tab Warming will watch the user's mouse cursor and start "painting" content inside a tab whenever the user hovers his mouse over one. Firefox will do this on the assumption the user wants to click and switch to view that tab and will want to keep a pre-rendered tab on hand if this occurs. "Those precious milliseconds are used to do the rendering and uploading, so that when the click event finally comes, the [tab] is ready and waiting for you," said Mike Conley, one of the Firefox engineers who worked on this feature.

8 of 170 comments (clear)

  1. Re:Great! by Aighearach · · Score: 5, Insightful

    One step forwards, two steps backwards. Repeat until bloat unmanageable, then rewrite and promise performance will be recovered over time.

  2. Speculative execution... by srl100 · · Score: 5, Funny

    ... what could possibly go wrong?

  3. Probably not needed - and that's a good thing by Dutch+Gun · · Score: 4, Interesting

    I actually tried out Chrome for a bit after Mozilla pulled it's Mr. Robot stunt, but came back to Firefox after noticing how much better it performed than Chrome, which was somewhat surprising to me. I had assumed they were at performance parity. At this point, I think Mozilla has the top performing browser by metrics that tend to matter in real life. The one I notice the most is that Firefox's UI rarely stutters when loading a page, while Chrome hitches and hangs in short bursts, making things feel sluggish. I think that makes a huge difference in the perception of speed and performance.

    Tabs switch almost instantly for me, and that's on a nine year old PC with a moderately slow internet connection. So while I'm glad Mozilla is looking at important things like performance (instead of yet another pointless UI revamp), it almost seems unnecessary at this point. Has anyone else noticed any sort of delay when switching tabs?

    --
    Irony: Agile development has too much intertia to be abandoned now.
  4. Feature from Opera 10 years ago by allo · · Score: 4, Interesting

    Opera just cached the rendered version of all open tabs. This is part why it were the fastes browser of its time.
    And they even cached the rendered version of pages in the history. A faster back button is not possible.

    1. Re:Feature from Opera 10 years ago by allo · · Score: 4, Interesting

      The main problem of this is that browsers today try to manage a lot of javascript state. So this feature will start javascript threads, which opera did not in the history. prerendering html is easy, but prerendering some react site is harder.

  5. Re:Great! by theweatherelectric · · Score: 4, Informative

    I need to be able to see the full title bar.

    Firefox solves your problem. Go Hamburger menu -> Customize -> Check the Title Bar check box and click Done. You'll have the full title bar on your window.

  6. Re:Great! by theweatherelectric · · Score: 5, Interesting

    (Asking for a friend)

    Friends don't let friends use Chrome.

  7. We brought it on ourselves by eddeye · · Score: 4, Funny

    For decades, browser scientists warned us this was coming. We had simple static pages, but no that wasn't enough for us. We needed dynamic content. We needed javascript.

    Suddenly we had all this free computation. It was exhilirating. We could make hampsters dance and punch the monkey to win. But that computation had a cost. We kept burning more and more CPU cycles.

    Browser scientists raised the alarm. All those cycles produced heat. At first our fans dissipated it, but they couldn't keep it. Eventually the heat crept into the rest of the system. They told us it would lead to tab warming. We just laughed and loaded more instagram kittens.

    Who's laughing now? Our tabs are getting so hot they overflow into other programs. Their behavior is increasingly erratic and unpredictable. Now we have rogue sites mining cryptocurrency in them. Face it, our tabs are damaged beyond repair, unable to sustain simple online email anymore.

    Like Icarus, we flew too close to the sun. We have no one to blame but ourselves.

    --
    Democracy is two wolves and a sheep voting on lunch.