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

How can I go back to 3.6.17?

more options

Firefox automatically downloaded 3.6.18 and I lost my Tabs. Then I downloaded 4 then 5 and hate them both. In 5 my mouse is very jerky. 3.6.17 works best for me and I want to go back to it. HELP how do I go back? Thx,

Firefox automatically downloaded 3.6.18 and I lost my Tabs. Then I downloaded 4 then 5 and hate them both. In 5 my mouse is very jerky. 3.6.17 works best for me and I want to go back to it. HELP how do I go back? Thx,

All Replies (1)

more options

For security reasons, it would be better to use 3.6.18 and fix the issue with your tabs.

Can you explain what you mean about losing your tabs -- did your Bookmarks Toolbar become blank or disappear completely?

Before making further changes, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

You can download the Firefox 3.6.18 installer here: http://www.mozilla.com/firefox/all-older