What can I do to restore the function of the button close browser?

After using firefox for a number of weeks without problem, today the browser close button does not work! (white cross on red background) The only way to close the browser is by using the Task Manager end task. It is a simple problem but what can I do about it? I tried to update but do not reinstall. I have no further details that I fear, the button does not. I don't think it's a problem with my computer cos for example 'word' closed as expected. Even the Internet Ezplorer. More than that, I have no clue why this is happening.

Is to close the window button, do not close the browser, and with Firefox, it makes a difference because of the subtasks.

The following can completely eliminate having to terminate Firefox via the Windows Task Manager, but it will come very close.

Plug-in and open by Firefox tasks can continue after trying

close Firefox closes the 'X' in the upper right of the

Window (same as Ctrl + Shift + W), but even if it's the last window of Firefox,
It does not necessarily close Firefox.

The only good way to leave Firefox is to use the output by the
File menu, not the 'X' in the top right of the last window of Firefox.
In version 4.0 and upwards with the button "Firefox" which would be Alt + F then X

Use the Windows Task Manager to remove all the firefox.exe running in the 'process' of the Windows Task Manager tab, then restart Firefox.

very rare- If Firefox still does not start, remove the file parent.lock profile that is created each time you start Firefox to prevent the execution of the other tasks of Firefox, see

http://KB.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file

Avoid problems with closing/restart Choose an extension

Allows to close and restart Firefox after enabling or disabling an extension, switch to a new theme, or modifying configuration files, then you don't have to worry any delay or have to look in the Task Manager to see if Firefox is closed.
  • "Restartless Restart" extension for Firefox 4.0 + only (2 KB to download).

use the hotkey "Ctrl + Alt + R" or file menu option.

https://addons.Mozilla.org/firefox/addon/249342/

  • "QuickRestart" extension (34 KB to download) (old extension for those less than 4.0)

use the hotkey "Ctrl + Alt + R" or file menu option.
https://addons.Mozilla.org/firefox/addon/3559/

Tags: Firefox

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