Browser.tabs.closeButtonsFrom MozillaZine Knowledge Base
[edit] BackgroundFirefox 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. [edit] Possible values and their effects[edit] 0Display a close button on the active tab only [edit] 1Display close buttons on all tabs (Default) [edit] 2Don’t display any close buttons [edit] 3Display a single close button at the end of the tab strip (Firefox 1.x behavior) [edit] Caveats
[edit] First checked in[edit] Has an effect in
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