Arch Linux

TRex

Member

Registered: 2011-08-21

Posts: 21

(Solved) Firefox 150: extension windows scaled very large

Hi,

I'm not too sure from which update this came from exactly, but I hope we'll figure that one out together..

Extensions like uBlock Origin draw a comically large window since a week or so. You can resize it using ctrl+mousewheel, otherwise it's unusable (doesn't register clicks properly).

The environment:
- HiDPI monitor
- hyprland/wayland
- firefox

Confirmed on a framework laptop with an AMD GPU and another arch user.

I haven't found a reported bug so far, but I'm not sure where to look for it either.

Last edited by TRex (Today 12:03:11)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 74,754

Re: (Solved) Firefox 150: extension windows scaled very large

Is it an https://wiki.archlinux.org/title/Waylan … plications window?

not sure where to look for it either … not too sure from which update this came from exactly … since a week or so

=> /var/log/pacman.log - what was updated "a week or so" ago?

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

TRex

Member

Registered: 2011-08-21

Posts: 21

Re: (Solved) Firefox 150: extension windows scaled very large

Too much - I'm not updating every day.

$ grep 2026-04-22 /var/log/pacman.log | grep upgraded | wc -l
216

My most likely suspect is firefox, followed by some display components:

[2026-04-22T21:10:49+0200] [ALPM] upgraded firefox (149.0.2-1 -> 150.0-1)

[2026-04-22T21:10:42+0200] [ALPM] upgraded mesa (1:26.0.4-1 -> 1:26.0.5-1)
[2026-04-22T21:10:42+0200] [ALPM] upgraded wayland (1.24.0-1 -> 1.25.0-1)

I don't see anything else being related enough (e.g. linux kernel).

Edit: I just rolled back using the pacman cache - and apart from firefox not wanting to start my profile with an older version, the bug was reproducibly gone in 149.

Last edited by TRex (Today 11:23:36)

rinbega

Member

Registered: Today

Posts: 1

Re: (Solved) Firefox 150: extension windows scaled very large

Yes, for me it started in Firefox 150, setting

widget.wayland.fractional-scale.enabled

to false fixes it for now.

TRex

Member

Registered: 2011-08-21

Posts: 21

Re: (Solved) Firefox 150: extension windows scaled very large

Yes, for me it started in Firefox 150, setting

widget.wayland.fractional-scale.enabled

to false fixes it for now.

Awesome, thank you.