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#1 2015-05-13 12:53:46
- mbklr
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- Registered: 2014-09-27
- Posts: 7
[SOLVED] Firefox / Thunderbird 38 with huge UI?
With the new Firefox 38 all UI elements, buttons, tabs, ... even the websites themselves seem to be magnified and HUGE.
I already tried with a new profile, but no luck. Btw, I'm using i3. Downgrading to 37.0.2-1 helped immediately. Anyone else experiencing this?
Last edited by mbklr (2015-06-12 08:18:01)
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#2 2015-05-13 14:22:39
- Alad
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- From: Bagelstan
- Registered: 2014-05-04
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
Possible hints: https://wiki.archlinux.org/index.php/HiDPI#Firefox
Mods are just community members who have the occasionally necessary option to move threads around and edit posts. -- Trilby
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#3 2015-05-13 15:08:18
- drcouzelis
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
What addons do you have installed? Whoops, never mind, you already tried with a new user. 
Last edited by drcouzelis (2015-05-13 15:08:49)
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#4 2015-05-13 15:52:11
- mbklr
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- Registered: 2014-09-27
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
Thanks, Alad, your guess was right and I should have mentioned that I'm on a HighDPI laptop (157 dpi). I think the Wiki points in the right direction by saying:
From Firefox version 38 onwards, your system (GTK+ 3.10) settings should be taken into account.I haven't figured out what could possibly change this behaviour. I deleted my .config/gtk-3.0/settings.ini just to see but no change. The gnome documentation for GTK+ settings wasn't helpful either. I did not find a setting corresponding to "scale", "dpi" or the like.
Is there a good method to test other GTK3+ apps without installing the whole Gnome suite?
I think I will have investigate where Firefox is actually pulling its configuration from. Sigh. What a mess.
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#5 2015-05-13 21:05:50
- Tuxe
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- From: Finland
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
Setting layout.css.devPixelsPerPx to 1 in about:config solved the problem for me.
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#6 2015-05-13 21:10:12
- mbklr
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- Registered: 2014-09-27
- Posts: 7
Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
Thanks, Tuxe, that did the trick!
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#7 2015-05-14 02:24:08
- tancrackers
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- Registered: 2012-04-11
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
I wanted to add that you can install dconf-editor
Then, go to: org -> gnome -> desktop -> interface -> scaling factor
Editing that will change Firefox 38 dpi
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#8 2015-05-14 15:34:46
- fratti
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- Registered: 2015-05-14
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Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
I wanted to add that you can install dconf-editor
Then, go to: org -> gnome -> desktop -> interface -> scaling factor
Editing that will change Firefox 38 dpi
That one didn't work for me, though I didn't try to restart my session.
This is "great" though, Firefox listens to GNOME, which not only manages to mess up auto detection but also considers integers an appropriate data type for scaling factors.
The entire concept of scaling factors is flawed anyway.
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#9 2015-06-12 08:15:34
- mbklr
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- Registered: 2014-09-27
- Posts: 7
Re: [SOLVED] Firefox / Thunderbird 38 with huge UI?
Update:
Same thing happened to me again with Thunderbird after todays update to 38.0.1.
Setting the layout.css.devPixelsPerPx to "1" in the thunderbird config editor helped as well.
Last edited by mbklr (2015-06-12 08:16:51)
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