521920 - Only the active tab has a close button when many tabs are open

Status: RESOLVED DUPLICATE of bug 358949

(Firefox :: Tabbed Browser, defect)

Description

[Vincent Lefevre]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-GB; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-GB; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3

I have browser.tabs.closeButtons set to 1, which is defined as "Display close buttons on all tabs" on <http://kb.mozillazine.org/Browser.tabs.closeButtons>. With a few tabs are open, everything is fine: each tab has its own close button. But when more tabs are open (this depends on the window width), only the active tab gets the close button.

Reproducible: Always

Steps to Reproduce:
1. Make sure that browser.tabs.closeButtons is set to 1 (this is the default).
2. Open several tabs (e.g. 5 - 10, depending on the window width).
Actual Results:  
Only the active tab has a close button.

Expected Results:  
All the tabs should have a close button, as documented. The button should preferably be transparent. Alternatively the close button could appear only when the mouse pointer is over the tab (the Tab Mix Plus extension can do that).

Comment 1

[Tyler Downer [He/Him]]

I believe that it does as because tabs get smaller and smaller, and so it takes it away so that you can still read the title.

Comment 2

[Arie Paap [:wildmyron]]

Close buttons on background tabs are also affected by browser.tabs.tabClipWidth
This is linked to from the URL you quote. If you want close buttons to be present always, set browser.tabs.tabClipWidth to be less than browser.tabs.tabMinWidth (default 100).

http://kb.mozillazine.org/Browser.tabs.tabClipWidth
http://kb.mozillazine.org/Browser.tabs.tabMinWidth

Note that mozillazine is not authoritative documentation of the behaviour Firefox should have, it is more a community effort to provide documentation for Firefox.

Resolving WORKSFORME as desired behaviour is present.