419181 - Oversized user interface after switching to widescreen monitor

Status: RESOLVED DUPLICATE of bug 394103

(Firefox :: General, defect)

Description

[Marcin Paździora]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.8) Gecko/20071101 Firefox/2.0.0.8 Flock/1.0
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.8) Gecko/20071101 Firefox/2.0.0.8 Flock/1.0

After I switched from using normal LCD flat screen to wodescreen one the whole Firefox UI became oversized. While text size in menus and tabs haven't changed, all the icons, graphics like favicons, close tab buttons etc. become magnified and seem to push the limits of their toolbars and tabs. Also, the content of web page is magnified. Enabling safe mode doesn't rectify the problem.

Reproducible: Always

Steps to Reproduce:
1. Just run the firefox start file

Actual Results:  
See attached screenshot showing the comparison between affected Minefield build of Firefox and unaffected Flock instance. The widescreen resolution is 1366*768.

Expected Results:  
Obviously, UI shouldn't be THAT big :)

Comment 1

[Marcin Paździora]

Attachment: Compare size of Minefield's UI and page elements and Flock's ones

Comment 2

[Marcin Paździora]

The Build Identifier of affected Firefox build is:
Mozilla/5.0 (X11; U; Linux i686; pl; rv:1.9b3) Gecko/2008020513 Firefox/3.0b3

Sorry for my mistake, I was posting this from Flock since Firefox is unusable.

Comment 3

[Sylvain Pasche]

might be bug 394103

can you try if setting explicitly layout.css.dpi in about:config solves this? (for instance, to 96)

Comment 4

[Marcin Paździora]

Yes, it helps. After changing it everything returns back to normal size. Factory default for this key is -1, however. Perhaps it needs more sane default or better logic to detect the change in screen geometry.

Thanks for help anyway :)