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 get back to version 3?

  • 3 replies
  • 5 have this problem
  • 12 views
  • Last reply by Xircal

more options

I upgrade to Firefox 4 & have nothing but problems (it won't let me log in to online banking, it won't let me go back a page, it opens with a blank bookmarks toolbar (in order to see it, I have to uncheck "view bookmarks toolbar", then go back and check it. Also, when I close it & reopen Firefox, it often tells me there's still an instance running. How do I reinstall Firefox 3 without losing any more of my settings? (Windows 7 Home, core2duo processor)

I upgrade to Firefox 4 & have nothing but problems (it won't let me log in to online banking, it won't let me go back a page, it opens with a blank bookmarks toolbar (in order to see it, I have to uncheck "view bookmarks toolbar", then go back and check it. Also, when I close it & reopen Firefox, it often tells me there's still an instance running. How do I reinstall Firefox 3 without losing any more of my settings? (Windows 7 Home, core2duo processor)

All Replies (3)

more options

Sorry to hear you're having a problem.

  • Then go to Add/Remove Programs, scroll down to Mozilla Firefox and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box).
  • Then reboot and delete the folder called Mozilla Firefox at this location: C:\Program Files\Mozilla Firefox
  • Finally run the installation file you downloaded.
more options

Thanks for the help. It got me back to Firefox 3 and I can now log in to my online banking. However, the browser seems to have inherited several problems from Version 4. 1. When I click on a hyperlink (such as the one in the email notifying me of your answer) when the browser is NOT open, it opens with a blank page whose tab reads '(Untitled)". If I click on the link a second time, it opens a new tab and completes the link. 2. I still lack the ability to navigate to a previous page - the arrows (and the menu items) are grayed out. Alt-left arrow doesn't work either.

more options

Try creating a new Profile, instructions here: Profile Manager - Create, remove or switch Firefox profiles

When you reinstalled 3.6.16, the installation retained your customizations, bookmarks etc. I can see in your system specs that you have a few customizations which may be interfering with your setup as it is now. Creating a new Profile is a way of testing whether that's the case or not.

If it works, then you can move your info to the new profile (instructions in the same article).