Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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

After upgrading to 6.0.2 from 6.0.1, Firefox has become laggier in terms of response time.

  • 3 replies
  • 19 have this problem
  • 16 views
  • Last reply by amalehuman

more options

For example, new tabs open/close after about a half-second pause. I notice when I do this, the CPU activity spikes to about 25% and dies down. Sometimes typing text will pause as well. Its behavior is as if it was bogged down with a memory leak.

For example, new tabs open/close after about a half-second pause. I notice when I do this, the CPU activity spikes to about 25% and dies down. Sometimes typing text will pause as well. Its behavior is as if it was bogged down with a memory leak.

Chosen solution

If anyone is still having problems, I seem to be having much better results after uninstalling the Facebook Toolbar.

Read this answer in context 👍 0

All Replies (3)

more options

Update All your Firefox Plugins

=> When Downloading Plugins Update setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)

Troubleshooting extensions and themes

Check and tell if its working.

more options

I don't know if this was the cause, but the browser feels normal after upgrading Adobe Flash Player to the latest version. Thanks!

more options

Chosen Solution

If anyone is still having problems, I seem to be having much better results after uninstalling the Facebook Toolbar.