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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Updated Firefox to 3.6.17 and then downloaded 4.0, and when installing got message that previous version was newer.

  • 4 uphendule
  • 4 zinale nkinga
  • 35 views
  • Igcine ukuphendulwa ngu IanSeale

more options

I updated Firefox to the latest version 3.6.17 on my Mac, and then saw that there was a version 4 available. So I downloaded it and and tried to install it by dragging the Firefox Icon to the Apps folder. A message appeared asking if I wanted to replace the newer version already there with this older version. Is 3.6.17 newer than 4? What is the latest for Mac?

I updated Firefox to the latest version 3.6.17 on my Mac, and then saw that there was a version 4 available. So I downloaded it and and tried to install it by dragging the Firefox Icon to the Apps folder. A message appeared asking if I wanted to replace the newer version already there with this older version. Is 3.6.17 newer than 4? What is the latest for Mac?

All Replies (4)

more options

Mozilla are currently maintaining 3 different release versions of Firefox, with the latest versions being 3.5.19, 3.6.17 and 4.0.1

Depending on when the files were created, you can get a version of Firefox 3.6 being reported as newer than a version of Firefox 4. If you want to use Firefox 4 you should install Firefox 4.0.1

more options

So 4.0.1 is really the latest version for Mac, and has newer features? Will I lose all the bookmarks and addons that I have in 3.6.17?

more options

Firefox 4 will use the same user data that Firefox 3.6 is currently using, you will have your bookmarks, passwords, cookies and other user data.

more options

Firefox 4.0 was completely unusable (see other posts on FF 4) due to it's excessive memory usage.

So I was forced to roll back to 3.6.16 (the previous version). Since then 3.6.16 has been upgraded to 3.6.17 - so I can see how that may have looked like a more recent version than FF 4.0.

However, my experience of FF 4.o was so bad, I'm staying on 3.6.17 until the very last minute. If FF 4 isn't sorted by the time they can 3.6.17, sorry Mozilla, I'm gone - you used to make great products, but seem to have forgotten how.