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Update fails and Embedded Youtube videos doesn't load

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  • 7 have this problem
  • 142 views
  • Last reply by cor-el

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Problem 1: All update (beta, RC) fails in my computer. After download, when I click in apply button, Firefox closes and a process "firefox.exe"starts with (~2.800 kB) and nothing happens. Every time and every versions in my 2 computers (Vista and Seven). It occurs since ~10 version (9, 10, 11... i don't remember.

When I download the exe from Mozilla, the update works.

Problem 2: Since the ~10 version or flash version, mostly embedded youtube videos doesn't load in firefox (in all pcs again). In youtube site it works, but embedded only shows a black square. In Google Reader it occurs all the time.

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A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:


If there are problems with updating then best is to download the full version of the Firefox installer.

Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.

If you keep having problems then also create a new profile.