... which is unfortunately not available in a stable format for Linux yet.
But you don't have to update to the latest beta of Firefox to have an "incognito" mode -- Firefox has supported this for quite some time. Essentially, you set up a second profile for incognito browsing and configure it such that it doesn't save history, cache, cookies, passwords, etc. Even better, install the Tor button extension and route all private browsing through the Tor network. There's not necessarily a guarantee that your discreet browsing artifacts aren't stored somewhere in memory while you're actually browsing, but it's still a hell of a way to keep things clean.
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And some of us use the much (MUCH) faster Chrome.
... which is unfortunately not available in a stable format for Linux yet.
But you don't have to update to the latest beta of Firefox to have an "incognito" mode -- Firefox has supported this for quite some time. Essentially, you set up a second profile for incognito browsing and configure it such that it doesn't save history, cache, cookies, passwords, etc. Even better, install the Tor button extension and route all private browsing through the Tor network. There's not necessarily a guarantee that your discreet browsing artifacts aren't stored somewhere in memory while you're actually browsing, but it's still a hell of a way to keep things clean.
Why? Why!?