Arch Linux

Dowefu

Member

Registered: 2014-03-25

Posts: 68

Firefox 40 | Graphical issues after update

Hi.

After update to Firefox 40, I observe different graphical issues. It seems, the browser doesn't render the picture in time.

For example, when I scroll down a webpage, it's actually scrolled, but I don't see the result of this action. When then I twitch the mouse pointer, the picture instantly switch to the bottom of the webpage.

Also, when I switch from one tab to another using the keyboard, the tab is actually switched, but again the browser doesn't render the picture in response to this event, so I stay on the old tab and have to twitch the mouse pointer forcing the browser to show me the actual tab.

Occasionally the browser freezes and the system monitor shows 100% CPU load.

Do you observe these issues? How can I tackle with the problem?

Thanks.

Firefox 40.0.2; GNOME 3.16.3; NVIDIA 304.125.

eda2z

Member

From: Woodstock, IL

Registered: 2015-04-21

Posts: 71

Re: Firefox 40 | Graphical issues after update

I have noticed the exact same problems on several machines and have downgraded to version 39.  Unfortunately I have not found any solution and I have tried several -- one of which resulted in a totally blank window.  I am also using the gnome theme and it looks strange when you open addons - the inside of the radio buttons are misplaced.

thv

Member

From: Germany

Registered: 2015-08-15

Posts: 3

Re: Firefox 40 | Graphical issues after update

Hello,

I have similar problems with firefox 40.0.2 when I want to adapt the toolbars.
Also Ctlr+L does not work.

Using a new configuration helps just for a few sessions of firefox.

Configuration is in ~/.mozilla/firefox/

Rename the file profiles.ini to profiles.ini.old .
Firefox creates a new profiles.ini with the next startup.

Renaming profiles.ini.old back to profiles.ini restores the old configuration,
when you want to use the old one again.

Hope that this will help a bit.

Thorben

Dowefu

Member

Registered: 2014-03-25

Posts: 68

Re: Firefox 40 | Graphical issues after update

The following change is the cause of the problem:

Improved scrolling, graphics, and video playback performance with off main thread compositing (GNU/Linux only)

It needs to turn off compositing: about:config → layers.offmainthreadcomposition.enabled = false

eda2z

Member

From: Woodstock, IL

Registered: 2015-04-21

Posts: 71

Re: Firefox 40 | Graphical issues after update

Thanks... The about:config change did nothing to fix mis-alignment in the Gnome Firefox theme when add-ons are open but browsing does seem more stable.  I will continue to test.