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Tried to upgrade to Firefox Sync 1.5. Restarted Firefox five times, won't install, still in install queue and wants to restart. What now?

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  • 2 have this problem
  • Last reply by cor-el

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Had an earlier version of Sync, it forced me to upgrade to 1.5, it is now hanging in the install queue.

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You can delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini, extensions.sqlite , if they exist) and compatibility.ini in the Firefox profile folder to reset the extensions registry. New files will be created when required.

See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.