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Firefox hangs very frequently after upgrading to 36 on Mac OS

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  • آخرین پاسخ توسّط guigs

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I have Mac OS X 10.6.8. I recently upgraded to Firefox 36.0.1. Ever since the upgrade Firefox hangs on most of the news and other websites that I frequent.

Anything that can be done to fix this?

I have Mac OS X 10.6.8. I recently upgraded to Firefox 36.0.1. Ever since the upgrade Firefox hangs on most of the news and other websites that I frequent. Anything that can be done to fix this?

Chosen solution

Hello, thanks for chiming in.

Yesterday I updated Flash to the latest version, and today I still got the problem, so that is ruled out definitively as cause.

Otoh I have been using FF for 2 days without a hitch I was just browsing around), and only had the slowdown appear today after I had activated Firebug for checking http traffic on a site I am developing.

This confirms the impression I had already got on friday, that Firebug might be involved. I put a comment their tracker, issue #7771

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All Replies (10)

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If you have problems with current Shockwave Flash plugin versions then check this:

  • see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

  • disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:


Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

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I tried your suggestions. Removed hardware acceleration. Have the latest version of Shockwave Flash.

But the problem persists even in Safe Mode. Firefox just hangs when I visit sites like guardian.co.uk. I have to go to Force Quit and kill Firefox.

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Same on win8.1 64bits. I thought it was a compiling-js problem , but it seems to happen on more and more sites...

ps: about the 'compiling-js' thing: not being a mozilla dev, all I can say in fact is: in the past I had the experience that some releases, while adding more and more jit goodness to the js interpreter, also were subject to stop-the-world-pauses, which I pinned down to js optimization, but it might have been something else altogether, such as slowdowns from the ssd or the encrypted partition which I use on top of it (truecrypt based)

Modified by gggeek

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ps: the latest occurrence of this was just after restarting firefox and heading to google calendar. there should be no flash involved in that

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Start your Computer in safe mode with networking. Then start Firefox. Try Safe web sites.

Starting The Computer In Safe Mode;
Free Online Encyclopedia


Install this. Is the problem still there?

Flash block {web link} Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it

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I did not install flashblock nor restarted the laptop in safe mode, but

- I doublechecked when FF froze, that the flash plugin container was not started (using process explorer)

- I checked resource usage while FF was blocked. Not a lot of IO going on, but definitely a big CPU spike when it starts hanging, followed by a lesser spike at the moment it comes back to life

- I might have forgot to tell you that when it comes back to life, it says 'a js on this page stopped working'

- when this happened last time I clicked on 'debug the script', and it opened ga.js

- I generally only visit safe websites (I have been a web developer for 7 years, and coding for a living north of 14 years btw)

- I have traced the FF syscalls while it was stuck, using procmon. I can send you the trace, if you're interested

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I've called the big guys to help you. Good luck.

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@ggeek If you are interested in getting involved please check out the QA Get Involved page: https://wiki.mozilla.org/QA/Desktop_F.../Tasks. It also sounds like you have a different issue, please consider starting a new thread.

In the meantime, since these did not help there is another version of Flash player that came out yesterday. I recommend updating and restarting Firefox to check for any updates.

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Chosen Solution

Hello, thanks for chiming in.

Yesterday I updated Flash to the latest version, and today I still got the problem, so that is ruled out definitively as cause.

Otoh I have been using FF for 2 days without a hitch I was just browsing around), and only had the slowdown appear today after I had activated Firebug for checking http traffic on a site I am developing.

This confirms the impression I had already got on friday, that Firebug might be involved. I put a comment their tracker, issue #7771

Modified by gggeek

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Ok, please do post back to help other users, I will mark your post as the solution for now, and will unmark it if other issues are found.