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  1. #1
    5 Star Lounger ibe98765's Avatar
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    Firefox 37.x: High memory use?

    I just migrated to Win 8.1/64 and switched to FF 37. I run with a lot of tabs open (currently 67).

    In old FF 3.6.28, it took about 400MB to start FF with the same number of tabs (using Bartab on both systems (actually Bartab Heavy on the FF37 system), so most tabs are unloaded at startup).

    In FF 37, almost 1GB! of memory is consumed by FF after starting and before doing anything. Are others having similar experiences?

  2. #2
    jwoods
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    I would suspect add-ons...Adblock Plus is known for consuming lots of resources.

    I would recommend disabling add-ons one by one to see if it changes.

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  4. #3
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    I have 1 FF37.0.2 window open with 8 tabs/pages and a 2nd window with 1 page and show about 390MB in Task Manager.

  5. #4
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    I have FF 37.0.2 and 12 tabs, 1500MB.

    cheers, Paul

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    One of the reasons why I prefer IE - much less demand.

  7. #6
    WS Lounge VIP access-mdb's Avatar
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    FF 37.0.2 and 13 tabs - ~460Mb. YMMV

  8. #7
    WS Lounge VIP Coochin's Avatar
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    Quote Originally Posted by ibe98765 View Post
    ...using Bartab on both systems...
    Check out https://philikon.wordpress.com/2011/...ure-of-bartab/

    And from https://addons.mozilla.org/en-us/firefox/addon/bartab/ "Works with Firefox 3.5 - 4.0b6" and "This add-on is, for now, no longer being maintained."
    Computer Consultant/Technician since 1998 (first PC was Atari 1040STE in 1988).
    Most common computing error is EBKAC: Error Between Keyboard And Chairback
    AMD FX8120 (8-core @ 3.1GHz) CPU, Gigabyte GA-990FXA-D3 motherboard, 8GB (2x4GB) DDR3 1866MHz RAM, ATI-AMD Radeon HD6770 PCI-E VGA, 480GB Kingston SSD, 2TB Seagate SATA3.0 HDD, ASUS DVD/RW.

  9. #8
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    After re-starting FF it's now 310MB.

    cheers, Paul

  10. #9
    Super Moderator BATcher's Avatar
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    Personally, I've given up on Firefox 37.x because of the crashes which I get on quite normal webpages like the BBC News and the Guardian (UK newspaper), among others.

    I didn't get these with V36 and below, nor with v38 beta 9 (which I installed in desperation).
    And that's with quite a number of add-ins, including the excellent "memory friendly" uBlock, which for me replaced AdBlock Plus.
    BATcher

    Time prevents everything happening all at once...

  11. #10
    4 Star Lounger
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    Can one tell how much of the browser's memory is being used by the adblocker extension?

  12. #11
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    I don't remember the last FF crash I had, although there are always a few sites that don't play nicely.

    I don't know of a way to tell which extension is using memory, but the Firefox forums might have some insight.

    cheers, Paul
    Last edited by Paul T; 2015-05-09 at 02:39.

  13. #12
    4 Star Lounger
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    Quote Originally Posted by jwoods View Post
    I would suspect add-ons...Adblock Plus is known for consuming lots of resources.

    I would recommend disabling add-ons one by one to see if it changes.
    I found an interesting article via the Mozilla Forums on Paul T's suggestion...
    https://blog.mozilla.org/nnethercote...-memory-usage/
    I tried the test suggested by using the VIM Color Scheme Test and Task Manager showed 21%/250 MB with no Adblock Plus and 40%/1780MB with it on.
    There was much less used with uBlock, 23%/440MB.

  14. #13
    Lounger rodsmine's Avatar
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    https://addons.mozilla.org/en-US/fir...memory/?src=ss

    Adds an about:addons-memory page that details add-on memory usage - meaning you type about:addons-memory in the URL bar.

  15. #14
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    Please refer to: https://addons.mozilla.org/en-US/fir...memory/?src=ss

    about:addons-memory
    About this Add-on
    about:addons-memory provides an experimental about: page for advanced users to display some memory usage statistics about their add-ons.

    To use, open about:addons-memory in a new tab.

    Dear press,
    no, it is not OK to install this add-on along with the Top 20 or something add-ons and publish articles singling out the "biggest memory wasters" or something along the lines of this. This is wrong, superficial, sensationalist and outright wrong.
    Adblock Plus, being the most popular add-on, using 20-30 MB of memory is not a problem. Add-ons that may use hundreds of mega bytes of memory with steadily growing memory usage *may* be a problem and this add-on is intended to find exactly these kinds of issues more easily.
    Anyway, do you really need thousands of ads popping up? I don't.

  16. #15
    New Lounger
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    FF 37.0.2, 18 tabs (each with pictures), less than 600 Megs. I use Adblock Plus 2.6.9.

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