This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox is running SLOOOOW. It takes five minutes to open a web page. IE works fine on the same computer. I have tried everything in the troubleshooting guide,

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

DrPhred
DrPhred
more options

Windows XP, Service Pack3, all the latest updates done. Scanned for viruses & malware, ran CCleaner. Defragged HD. Reset Firefox, uninstalled firefox & reinstalled. The only thing I haven't done is throw away my user profile. I exported my bookmarks to an HTML file so I can restore them. Will that work?

Windows XP, Service Pack3, all the latest updates done. Scanned for viruses & malware, ran CCleaner. Defragged HD. Reset Firefox, uninstalled firefox & reinstalled. The only thing I haven't done is throw away my user profile. I exported my bookmarks to an HTML file so I can restore them. Will that work?

Chosen solution

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:

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

Read this answer in context 👍 1

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

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:

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.