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how can i delete the last updates to firefox because i dont have a close tab now after updating

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how can i delete my last updates from firfox because after the updates i now don' have a close tab

how can i delete my last updates from firfox because after the updates i now don' have a close tab

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Don't have a close button? Check again with at least two tabs open.

Do you have at least the first four items checked in Tools > Options > Tab

Did you make a configuration choice to not display tabs (or worse installed "Tabs Mix Plus" extension). My choice is 3 - display at end of tab strip.

browser.tabs.closeButtons

  • 0: Display a close button on the active tab only
  • 1: (default) Display a close button on each tab
  • 2: Don't display any close buttons
  • 3: Display a single close button at the end of the tab bar (Firefox 1.x behavior)

More information on configuration variables available in about:config (entries) and for users not familiar with the process there is about:config (How to change)

You can make Firefox 4.0.1 look like Firefox 3.6.17, see numbered items 1-10 in the following topic Fix Firefox 4.0 toolbar user interface, problems (Make Firefox 4.0 look like 3.6)