1260777 - [gtk3] button labels are messed up while being dragged to another position

Status: NEW

(Core :: Widget: Gtk, defect, P4)

Description

[Bogdan Maris, Desktop Test Engineering]

[Affected versions]:
- Firefox 46beta6
- latest Developer Edition 47.0a2
- latest Nightly 48.0a1
(Only GTK3 builds are affected)

[Affected platforms]:
- Ubuntu 12.04 32bit

[Steps to reproduce]:
1. Start Firefox
2. Enter Customize mode
3. Drag icons or tools

[Expected result]:
- No layout issue can be seen

[Actual result]:
- Icons are messed up while dragging.

[Regression range]:
- This happens only on builds with GTK3 (I tested with 43beta6 and the same behavior can be seen there so I think it is safe to say that this is not a recent regression). 

[Additional notes]:
- Ubuntu 14.04 32bit is not affected by this.

Comment 1

[Karl Tomlinson (:karlt)]

It's hard to make this nice with old GTK3 versions, but I expected better than this.
It looks much better here with the same GTK version.  Still blocky/aliased, but the text is readable.  Perhaps softer text rendering options make it worse.

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

We should aim to fix this for 47 or 48, but it doesn't sound like a release blocker for the feature or for 46.

Comment 3

[Jim Mathies [:jimm]]

Karl, is this something we should be tracking?

Comment 4

[Karl Tomlinson (:karlt)]

Given this only affects very old systems (but still supported), I don't think we can afford to diagnose and polish this.