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XP computer painfully slow when latest Firefox is installed

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I have a win vista computer which has worked for years and run Firefox fine, Two weeks ago I upgraded firefox as usual and Firefox became painfully slow. A nerdy friend tried reloading the latest Firefox and concluded Firefox was much slower than Explorer or than Opera. My wife is very unhappy. What do I do now?

I have a win vista computer which has worked for years and run Firefox fine, Two weeks ago I upgraded firefox as usual and Firefox became painfully slow. A nerdy friend tried reloading the latest Firefox and concluded Firefox was much slower than Explorer or than Opera. My wife is very unhappy. What do I do now?

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Well you could start with giving us the troubleshooting information from the Firefox installation that's having problems

  • Click the Firefox button at the top left, then click the Help menu and select Troubleshooting Information from the submenu. If you don't have a Firefox button, click the Help menu at the top and select Troubleshooting Information from the menu.

Now, a new tab containing your troubleshooting information should open.

  • At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
  • Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
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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 internet for Firefox and the plugin-container process and the updater process.

See: