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Firefox worked before 11 update, now pages either don't load (Content Encoding Error) or don't load everything.

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  • 9 have this problem
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  • Last reply by Liz

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I just got a new dell computer with windows 7 home premium 64-bit version. I downloaded firefox and it worked perfectly fine. Then after it updated, it doesn't work. It will load some of my bookmarks, but not completly. Some websites like youtube load fine. Other websites don't load right or not at all. When they don't load it displays the Content Encoding Error. Whenever I try to search something with google, the search results never appear. None of the troubleshooting fixes worked.

I just got a new dell computer with windows 7 home premium 64-bit version. I downloaded firefox and it worked perfectly fine. Then after it updated, it doesn't work. It will load some of my bookmarks, but not completly. Some websites like youtube load fine. Other websites don't load right or not at all. When they don't load it displays the Content Encoding Error. Whenever I try to search something with google, the search results never appear. None of the troubleshooting fixes worked.

Chosen solution

A possible cause is security software (firewall) 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:


Does it help if you disable the compression from web servers by setting the network.http.accept-encoding pref to an empty string on the about:config page?

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It sounds as if things in the profile have gotten corrupted. Hopefully at least some of the backups of the bookmarks are still intact. Save the bookmarkbackups folder from the profile and then make a new profile. You can put the bookmarkbackups into the new profile after it is made.

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Try to clear the "Browsing Cache" via Clear Recent History and set the time range to everything.
You may need to clear the cookies as well.

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By profile do you mean user accounts? If so, I already tried that, running firefox in a new account. The problem persist even in the other accounts on my computer (mom's & brother's accounts). Thanks for the reply but I already tried that and clearing the history and cookies and pretty much everything else in the troubleshooting guides. None of it worked.

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Chosen Solution

A possible cause is security software (firewall) 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:


Does it help if you disable the compression from web servers by setting the network.http.accept-encoding pref to an empty string on the about:config page?

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Aahh thanks!! Setting the accept-encoding pref to an empty string worked!! Yet there's still some things that bother me... when I run Enum Process, it says it detects a firewall process from ezTrust. I can't find ezTrust anywhere on my computer, so I don't know why it has a firewall process. And when I tried to disable DNS prefetching, it would never let me set it as a boolean. When I click New > Boolean and enter 'network.dns.disablePrefetch', it always sets it as a string. Anyway, pages load now (altough some are a bit slow), so thanks again for the help.