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Mozilla takes another stab at elusive multiprocess Firefox

  1. #1


    Posts : 22,584
    64-bit Windows 10

    Mozilla takes another stab at elusive multiprocess Firefox


    Internet Explorer does it. Chrome does it too. Now Mozilla is trying -- again -- to make Firefox run multiple processes at the same time.

    Firefox may offer a lot of competitive features in a tight browser marketplace, but one thing it lacks is the kind of sandboxed, multiprocess architecture under its hood that other browsers have had for years.

    Changing to a multiprocess architecture for Firefox would result in numerous benefits, wrote Firefox engineer Bill McCloskey on Thursday, in the three key areas of performance, security, and stability. A multiprocess architecture splits various browser functions into multiple tasks on the computer, instead of bundling them all together as one process for the browser
    .
    Read more at: Mozilla takes another stab at elusive multiprocess Firefox | Business Tech - CNET News

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  2. #2


    Posts : 328
    Windows 8.1 (x64)


    Interesting news, I feel this was the last thing missing from Firefox. Since its main advantage lies in the plethora of extensions, a way to easily sandbox them is good news indeed.
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  3. #3


    As a long time FF user I would really like to see that change. Should also be able to run more add-ons without slowing everything down but would probably make a larger memory footprint.
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  4. #4


    Chicago USA
    Posts : 84
    Windows 7 Pro and Windows 8.1 Pro 32 bit and 64 bit


    I have been using FF for quite a long time. The one thing that always bugged me was the start up time when you are using the Adblock+ extension. Some guy came up with a preloader extension that loads a bunch of the needed files into memory so it was much faster on startup even with the Adblock+ installed. A couple of revisions ago the preloader just quit working and I am back to the slow startup time. 8-10 seconds with the Adblock+ installed and just 2-3 seconds without it.
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  5. #5


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    The first benefit that comes in mind about a multiprocess version is that by crashes due to plugins, it will only crash the respective plugin instance (tabs or window or just hidden plugin) and not the entire fleet of tabs that will ask for a major restore on launch.
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  6. #6


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Quote Originally Posted by mick823 View Post
    I have been using FF for quite a long time. The one thing that always bugged me was the start up time when you are using the Adblock+ extension. Some guy came up with a preloader extension that loads a bunch of the needed files into memory so it was much faster on startup even with the Adblock+ installed. A couple of revisions ago the preloader just quit working and I am back to the slow startup time. 8-10 seconds with the Adblock+ installed and just 2-3 seconds without it.

    I wonder how that works... Chrome has an adblock too but it loads way faster. Must be that multiprocess initialization where it loads multiple instances simultaneously.

    Simple look-and-see tests with exotic x64 versions below (they usually use more memory per process).

    1.
    Click image for larger version
    Chromium 33 x64, 4 tabs open
    Memory footprint... about 100mb per tab + some adblock instances, load time faster than Firefox.

    2.
    Click image for larger version
    Pale Moon 24 x64, 4 tabs open
    Memory footprint... about 280mb all-in-one process + adblock instance?, load time slow as usual.

    Notice the number of threads per process, if you count all Chrome (Chromium here) threads they will exceed Firefox's (Pale Moon here). This will have an impact too depending how much the CPU will be used.

    All in one seems to be limited indeed.
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  7. #7


    Adelaide
    Posts : 1,338
    Windows 7 Ultimate SP1 (64 bit), Linux Mint 17.1 MATE (64 bit)

    New or Restored


    Quote Originally Posted by Hopachi View Post
    Quote Originally Posted by mick823 View Post
    I have been using FF for quite a long time. The one thing that always bugged me was the start up time when you are using the Adblock+ extension. Some guy came up with a preloader extension that loads a bunch of the needed files into memory so it was much faster on startup even with the Adblock+ installed. A couple of revisions ago the preloader just quit working and I am back to the slow startup time. 8-10 seconds with the Adblock+ installed and just 2-3 seconds without it.

    I wonder how that works... Chrome has an adblock too but it loads way faster. Must be that multiprocess initialization where it loads multiple instances simultaneously.

    Simple look-and-see tests with exotic x64 versions below (they usually use more memory per process).

    1.
    Chromium 33 x64, 4 tabs open
    Memory footprint... about 100mb per tab + some adblock instances, load time faster than Firefox.

    2.
    Pale Moon 24 x64, 4 tabs open
    Memory footprint... about 280mb all-in-one process + adblock instance?, load time slow as usual.

    Notice the number of threads per process, if you count all Chrome (Chromium here) threads they will exceed Firefox's (Pale Moon here). This will have an impact too depending how much the CPU will be used.
    Is this happening with new sessions (clean) starts or previous sessions restores?
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  8. #8


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Quote Originally Posted by lehnerus2000 View Post
    Quote Originally Posted by Hopachi View Post
    Quote Originally Posted by mick823 View Post
    I have been using FF for quite a long time. The one thing that always bugged me was the start up time when you are using the Adblock+ extension. Some guy came up with a preloader extension that loads a bunch of the needed files into memory so it was much faster on startup even with the Adblock+ installed. A couple of revisions ago the preloader just quit working and I am back to the slow startup time. 8-10 seconds with the Adblock+ installed and just 2-3 seconds without it.

    I wonder how that works... Chrome has an adblock too but it loads way faster. Must be that multiprocess initialization where it loads multiple instances simultaneously.

    Simple look-and-see tests with exotic x64 versions below (they usually use more memory per process).

    1.
    Chromium 33 x64, 4 tabs open
    Memory footprint... about 100mb per tab + some adblock instances, load time faster than Firefox.

    2.
    Pale Moon 24 x64, 4 tabs open
    Memory footprint... about 280mb all-in-one process + adblock instance?, load time slow as usual.

    Notice the number of threads per process, if you count all Chrome (Chromium here) threads they will exceed Firefox's (Pale Moon here). This will have an impact too depending how much the CPU will be used.
    Is this happening with new sessions (clean) starts or previous sessions restores?
    New sessions, clean starts.
      My System SpecsSystem Spec

Mozilla takes another stab at elusive multiprocess Firefox
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