Open Bug 1184137 Opened 8 years ago Updated 4 months ago

[OS X] Layout issues when Bookmarks Toolbar is placed in the Tab bar


(Firefox :: Toolbars and Customization, defect)




Tracking Status
firefox40 --- affected
firefox41 --- unaffected
firefox42 --- affected


(Reporter: adalucinet, Unassigned)


Reproducible with Firefox 40 beta 4 (Build ID: 20150713153304) and latest 42.0a1 e10s on/off (2015-07-14)
Affected platforms: Mac OS X 10.9.5

1. Launch Firefox.
2. Enable Bookmarks Toolbar.
3. Click menu [≡] → select "Customize".
4. Drag & drop Bookmarks Toolbar Items next to the 'Open a New Tab' button (+).
5. Exit Customize.
6. Mouse over 'Open a New Tab' button/Bookmarks Toolbar entries.

Expected result: No layout issues.

Actual result: Layout issues present.

Additional notes:
1. Not reproducible with latest Developer Edition.
2. Also reproducible with with Nightly 2015-04-01; will investigate further. 
3. Screencast showing this issue:
Not a regression → also reproducible with Nightly 2013-11-19 (when Australis was enabled by default).
Severity: normal → S3
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