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 do I opt out of this Firefox and return to previous version? I'll do it at later date.

  • 2 replies
  • 4 have this problem
  • 1 view
  • Paskiausią atsakymą parašė syadon

more options

This version of Firefox looks great but am short on time to learn new tasks currently. Child in hospital. Would like to return to previous version with which I am familiar, and update at later date when I am free to concentrate on this excellent program. I had no idea of the work involved when I clicked on 'update to...etc' and realized immediately that I had made a mistake as soon as I saw the home page. How do I delete this version and return to previous one? Thanks, S.L. Yadon

This version of Firefox looks great but am short on time to learn new tasks currently. Child in hospital. Would like to return to previous version with which I am familiar, and update at later date when I am free to concentrate on this excellent program. I had no idea of the work involved when I clicked on 'update to...etc' and realized immediately that I had made a mistake as soon as I saw the home page. How do I delete this version and return to previous one? Thanks, S.L. Yadon

All Replies (2)

more options

On the one hand, it doesn't take long to customize the UI to match the appearance of Firefox 3.

On the other hand, it doesn't take that long to revert to Firefox 3.6, either. Here's the process to roll back:

First, 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.)

Next, download and save Firefox 3.6 to your desktop for future installation. http://www.mozilla.com/firefox/all-older

Close Firefox 4.

You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program.

Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details.

Note: I haven't actually tried this myself!

more options

Thanks so much for your instructions/suggestions. Did as you said and am back to old familiar version. I'll get up to speed w/the modern age later. I had the good sense not to install any add-ons for the brief time I was on Firefox 4. I'll be more thoughtful before clicking on anything in the future.