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How do I uninstall/ get rid of Firefox 36?

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  • Last reply by cor-el

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Since Firefox 36.0 was downloaded onto my computer, I get "server not found" error messages almost every time I try to load a webpage. Even when a page ultimately loads, it takes a long time to do so. I've cleared the cache, deleted history, changed the proxy settings as different articles recommend, but the problem persists. I shouldn't have to do this stuff every time I click on a link.

Since Firefox 36.0 was downloaded onto my computer, I get "server not found" error messages almost every time I try to load a webpage. Even when a page ultimately loads, it takes a long time to do so. I've cleared the cache, deleted history, changed the proxy settings as different articles recommend, but the problem persists. I shouldn't have to do this stuff every time I click on a link.

All Replies (2)

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Install an older version of Firefox {web link}

Uninstall Firefox from your computer {web link}


But first, try this;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select Network. Look for Configure How Firefox Connects and press the Settings button. Check the settings.


Some problems occurs when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

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It is possible that your security software (firewall, anti-virus) 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 install for Firefox and the plugin-container process and the updater process.

See:


Do a malware check with several malware scanning programs on the Windows computer. Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

You can also do a check for a rootkit infection with TDSSKiller.

See also: