Multiprocess Firefox – An afternoon testing on Ubuntu 12.04

What is multiprocess Firefox?They do a much better description here: https://billmccloskey.wordpress.com/2013/12/05/multiprocess-firefox/
But basically it’s the start of having each tab in Firefox isolated from each other and the Firefox drawn UI (referred to as chrome).  Right now it only isolates the “chrome” from the webpages with one process each.

This is my experience using it for one afternoon on Ubuntu 12.04.   I disabled all add-ons because I don’t think it’s ready for my add-on collection…

What doesn’t work

  • AppTabs don’t come back on a restart (expected)
  • Password management doesn’t autofill (you can still access passwords though and copy/paste them). (expected)
  • Flash doesn’t work (click to play doesn’t seem to work either…) (expected)
  • Accepting no third-party cookies doesn’t work (seems to just disable all cookies)
  • Scrolling is a bit jumpy at times
  • Embedded content issues
    • Salesforce widget fails with “Content Encoding Error” because it doesn’t define a mime type?
    • My TinyTinyRSS installation doesn’t work only when loading slashdot pages (they embed ads)
  • Opening a new tab from the new tab page using middle click. (It does work if you do it via right click open new tab, with middle click it loads in the same window)
  • Zoom works on some pages but not others…
  • Trying to print crashes the page process (expected)
  • It’s one process for all tabs right now, so when one crashes, they all do
  • WebGL isn’t detected at all (expected)
  • Downloads seem to freeze (was downloading a Zentyal 700 MB image..)
  • Can’t attach files.. (this is what ended my testing :/)

What does work

(that seems surprising, most sites just worked as usual)

  • Saving a page
  • HTML5 Vidoe works (youtube), but fullscreening is two steps (one in the window and then hit F11)

One nice item is when you give up and disable it.. your previous session is restored from before you started..

I’m going to keep trying it ever month or so to see how it progresses (I’m already a nightly user)..

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