Forward, backword arrows do not function
The backward, forward buttons are not illuminated and do not function.
The backward, forward buttons are not illuminated and do not function.
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First make sure that Firefox has been set to remember history, for details on the settings to check see the Settings for privacy, browsing history and do-not-track article.
If Firefox is set to remember history, there may be a problem with the file that stores history, for details on fixing that see http://kb.mozillazine.org/Locked_or_damaged_places.sqlite