832490 - Firefox for Linux should accomodate hi-dpi screens better

Status: RESOLVED DUPLICATE of bug 840881

(Core :: Widget: Gtk, defect)

Description

[Eric Appleman]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:20.0) Gecko/20130117 Firefox/20.0
Build ID: 20130117093500

Steps to reproduce:

I have a 1080p 15" screen, everything looks tiny in Firefox.

layout.css.devPixelsPerPx is no longer an option for Nightly and Aurora since the menus and drop-downs do not render or scale properly.

Comment 1

[Karl Tomlinson (:karlt)]

Trying to do the right thing for different system scale factors (logical dpi) is bug 712898.

But it sounds like you are reporting a regression in behaviour of menus with layout.css.devPixelsPerPx, and it may be useful to use this bug to track that.

Are the menu issues the same as shown in bug 832524?

Comment 2

[Eric Appleman]

No, the behavior is different. The menus are squished to the point of invisibility.

Comment 3

[Eric Appleman]

Attachment: Menu behavior

Comment 4

[Karl Tomlinson (:karlt)]

I think we need to fix the menu issue with devPixelsPerPx to get better hi-dpi support (bug 712898), so I'll dupe this forward to a bug specifically about that.