Firefox updated even though set to don't update
I had firefox set to not updating without asking and then suddenly open firefox and it is telling me that it is updated and what is different. Firefox is now extremely slow at loading pages when it was ok before. It also keep saying something went wrong and closes down every few minutes. Sometimes pages will load slowly and other times they will time out and I keep having to refresh until it loads. But then only get a few minutes work done before it crashes. Can I just go back to the version before? Thank You for your help
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First, Type about:preferences#advanced<enter> in the address bar. Under Advanced, Select Update.
[v57+] Type about:preferences#general<enter> in the address bar. Select Update.
Check the settings.
Also turn off Use a background service to install updates
Install Older Version Of Firefox {web link} Be sure to read everything here.
If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.
You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements