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recklessswing

Member

From: Türkiye

Registered: 2020-12-18

Posts: 146  

Firefox lags and sometimes freezes completely on Devuan 6

I haven't done anything wrong. Just XFCE install, i5 1235U laptop, but firefox freezes sometimes. It's weird but doesn't happen on Gnome Wayland.

Last edited by recklessswing (2026-04-04 23:07:06)

yurimodin

Member

Registered: 2025-06-09

Posts: 27  

Re: Firefox lags and sometimes freezes completely on Devuan 6

maybe disable hardware acceleration.

Camtaf

Member

Registered: 2019-11-19

Posts: 555  

Re: Firefox lags and sometimes freezes completely on Devuan 6

Maybe doesn't help you, but I have no problems using Firefox on XFCE on my I3 or i5 computers, using Devuan from 'server' media installs.....

askfor

Member

Registered: 2024-12-19

Posts: 10  

Re: Firefox lags and sometimes freezes completely on Devuan 6

Do you happen to have any extensions installed. Also you my try running Firefox from terminal, like this:

firefox > out.txt 2>&1

Firefox outputs quite a lot. When it freezes, wait a bit. The output might be buffered, so give it a minute. You might examine out.txt while firefox is still running and also after you stop it.

Dvtra

Member

Registered: Today

Posts: 2  

Re: Firefox lags and sometimes freezes completely on Devuan 6

Peace and Good to all!
My Firefox are freezing too. but only in multi function.
First notice when i open Firefox and Libre Office togheter (so exclude GTK from Libre office corrects the problem eith some modifications in Firefox)
In Firefox go to configuration>Performance (Desempenho in portuguese) > deactivated option
And deactivet so: Use hardware acceleration
And in browser type:
about:config
Skip risk screen and type
gfx.webrender.software
change the first option to true
after that type:
layers.acceleration.disabled
change to true
and that:
webgl.disabled
change to true

So i can use Firefox with Libre Office, but not Firefox with OBS-studio and so
In Firedox browser again, type:
about:config
Skip risk screen and type
gfx.webrender.all
alterar gfx.webrender.all to true
gfx.x11-egl.force-disabled
change to true
media.ffmpeg.vaapi.enabled  (original in boolean)
change to false
and so
gfx.webrender.compositor
change to false

So i can use OBS-Studio with Firefox;

But is freezing again with Thunderbird at same time:
im trying right now (haha - kkk -  jaja ) and like Terminator:  "i wil be back"

dom.ipc.processCount.webIsolated (original in mine is 4)
change to 2 or4

So im a Gigabyte Aorus B450m Elite, AMD Ryzen 7 3700x, 16 GB RAM, Asus/Nvidia GTC 1050 Ti, SSD Samsumg  970 EVO Plus , Devuan-GNU, XFCE sysVinit, Linux 6.12.90+deb13.1-amd64 (with a Barracuda HD with Windows11)

Dvtra

Member

Registered: Today

Posts: 2  

Re: Firefox lags and sometimes freezes completely on Devuan 6

Peace and Good Again (now with a solution for the use of Firefox and Thunderbird toguether)
first of all
purple.disable_foreground_integration
Change to true

toolkit.cosmeticAnimations.enabled
change to false

mail.spotlight.enable
change to false

browser.tabs.unloadOnLowMemory
change to false

dom.ipc.processCount
change to 1 or 2

accessibility.force_disabled
change to 1

widget.use-dbus-menu
change to false

browser.tabs.remote.autostart
change to true

widget.use-dbus-menu
change to false

Change the ahead lines in Thunderbird (configuration -engine icon, then scroll down at config editor, advanced preferences) too, and also change that lines:
gfx.webrender.software
change to true

layers.acceleration.disabled
change to true

webgl.disabled
change to true

gfx.x11-egl.force-disabled
change to true

widget.gtk.cursor-async.enabled
change to false

so trhe lines doenst do the work alone, at least for me. Indeed in this case i need to change some lines to configure the rendering method.

nano /usr/share/applications/firefox-esr.desktop
Exec=env -i DISPLAY=:0 dbus-run-session /usr/lib/firefox-esr/firefox-esr %u

nano /usr/share/applications/thunderbird.desktop
Exec=env -i DISPLAY=:0 dbus-run-session /usr/bin/thunderbird %u

And now i m  thinking if changing only the archive /usr/share/applications/firefox-esr.desktop i can get stop the freezes??? Anyone can test, and report? (im thinking in test too hhehehe).

blackhole

Member

Registered: 2020-03-16

Posts: 215  

Re: Firefox lags and sometimes freezes completely on Devuan 6

That's a lot of workarounds. It could be graphics stack / acceleration related. In such cases I would normally install a newer kernel from backports and see if that resolves it.

Also you will need the "non-free" drm firmware installed for Intel or AMD GPUs - that's the first step.

yurimodin

Member

Registered: 2025-06-09

Posts: 27  

Re: Firefox lags and sometimes freezes completely on Devuan 6

install the uBlock Origin extension. Most of the ads on the 'modern' internet make it completely unusable.