firefox-esr poor performance

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Re: firefox-esr poor performance

Postby milomak » 2017-07-19 20:05

a link to a video that causes the issue?
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Re: firefox-esr poor performance

Postby maximus1978 » 2017-07-19 22:18

PhilGil wrote:I've taken a performance hit since the upgrade to Firefox-ESR 52.x, too. Not specifically with multimedia, but in general v52 feels more sluggish. Plus RAM usage has skyrocketed - with four tabs open the combined firefox-esr and Web Content processes are using almost 1GB of RAM. I suspect the poor performance and high resource use are related to the introduction of multiprocess - I don't think Mozilla had it dialed in yet when version 52 was released. I've been meaning to give the release version a shot to see if performance has improved since.

I don't have an especially low-speced machine. I'm using a desktop PC with an i5 Sandy Bridge processor and 8GB of RAM. I don't have Flash installed in Firefox.


I have disabled webm with the following steps. Getting much better performance and full screen too.

about:config

media.webm.enabled

Set this to false.

Is this the fix?

So far working on 4 of my machines.

HTML5 has issue with .webm format?
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Re: firefox-esr poor performance

Postby VentGrey » 2017-07-19 22:33

I did experience a similar issue tho, I solved it by installing a weird extension called "SpeedyTweaks" & modifying the about:config tab, searched for any kind of browser animations, It's not a nice looking browser but it recovers it's speed. :mrgreen:
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Re: firefox-esr poor performance

Postby maximus1978 » 2017-07-19 22:41

VentGrey wrote:I did experience a similar issue tho, I solved it by installing a weird extension called "SpeedyTweaks" & modifying the about:config tab, searched for any kind of browser animations, It's not a nice looking browser but it recovers it's speed. :mrgreen:


What is your "media.webm.enabled" set at?

I set mine too false. This seems to have been my issue.
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Re: firefox-esr poor performance

Postby PhilGil » 2017-07-20 02:10

maximus1978 wrote:
PhilGil wrote:I've taken a performance hit since the upgrade to Firefox-ESR 52.x, too. Not specifically with multimedia, but in general v52 feels more sluggish. Plus RAM usage has skyrocketed - with four tabs open the combined firefox-esr and Web Content processes are using almost 1GB of RAM. I suspect the poor performance and high resource use are related to the introduction of multiprocess - I don't think Mozilla had it dialed in yet when version 52 was released. I've been meaning to give the release version a shot to see if performance has improved since.

I don't have an especially low-speced machine. I'm using a desktop PC with an i5 Sandy Bridge processor and 8GB of RAM. I don't have Flash installed in Firefox.


I have disabled webm with the following steps. Getting much better performance and full screen too.

about:config

media.webm.enabled

Set this to false.

Is this the fix?

So far working on 4 of my machines.

HTML5 has issue with .webm format?


I tried it and that doesn't seem to be my problem, although it may help other posters whose problems seem to be media-related. Mine is just general sluggishness. On a positive note, I did try the release version of Firefox (v54.x) and it seems to be a bit perkier, although RAM use is even worse.
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Re: firefox-esr poor performance

Postby maximus1978 » 2017-07-20 11:26

PhilGil wrote:
maximus1978 wrote:
PhilGil wrote:I've taken a performance hit since the upgrade to Firefox-ESR 52.x, too. Not specifically with multimedia, but in general v52 feels more sluggish. Plus RAM usage has skyrocketed - with four tabs open the combined firefox-esr and Web Content processes are using almost 1GB of RAM. I suspect the poor performance and high resource use are related to the introduction of multiprocess - I don't think Mozilla had it dialed in yet when version 52 was released. I've been meaning to give the release version a shot to see if performance has improved since.

I don't have an especially low-speced machine. I'm using a desktop PC with an i5 Sandy Bridge processor and 8GB of RAM. I don't have Flash installed in Firefox.


I have disabled webm with the following steps. Getting much better performance and full screen too.

about:config

media.webm.enabled

Set this to false.

Is this the fix?

So far working on 4 of my machines.

HTML5 has issue with .webm format?


I tried it and that doesn't seem to be my problem, although it may help other posters whose problems seem to be media-related. Mine is just general sluggishness. On a positive note, I did try the release version of Firefox (v54.x) and it seems to be a bit perkier, although RAM use is even worse.


What is your video card?
Can you post lspci?
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