Browser.tabs.closeButtons
From MozillaZine Knowledge Base
Background
Firefox 2.0 introduced a number of refinements to its tabbed browsing UI. Among them was the addition of close buttons on tabs. This preference controls how they can be displayed on tabs.
Possible values and their effects
0
Display a close button on the active tab only
1
Display close buttons on all tabs
2
Don’t display any close buttons
3
Display a single close button at the end of the tab strip (Firefox 1.x behavior)
First checked in
Has an effect in
- Mozilla Firefox (nightly branch builds since 2006-06-26; 2.0)
Related bugs
- Bug 318168 - Improve tabbed browsing
- Bug 343061 - if browser.tabs.closeButtons == 3, you can't close tabs on pinstripe