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19 working fine, downloaded 20 - it crashes frequently, hogs memory, runs scripts and slows down internet. I don't want a fix, just reinstall 19

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FF 19 was working fine. Downloaded 20 and within 5 mins. it crashed. Script running problems again and it slows down my internet connection tremendously. I don't want to fix it, I want to go back to FF 19 but can't find it - it doesn't exist Running XP SP 3. If I can't go back to FF 19, then I'll just remove it and stick with Chrome. I like the old private browser in FF 19 better. I run 20 - 40 tabs open at a time and the way the new Private browser works with the existing window open just uses more memory Thanks!

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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

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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.

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If you have submitted crash reports then please post the IDs of one or more crash reports that have this format:

  • bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the IDs of the submitted crash reports on the about:crashes page.

  • You can open the about:crashes page via the location bar, like you open a website.

See: