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

My OS (Mac OS X, v10.3.9) does not support the current version of Firefox (3.6). How can I find and install an older version of Firefox? I used to have v 2.0.0.20. I think I could run v 3.

more options

I have an old Apple PowerBook G4. I've tried downloading Firefox 3.6.6. (using Firefox 2.0.0.20), but every time after the download seems successful, I get an error message saying: "Disk image failed to mount. Reason: corrupt image." I also noticed that the current version of Firefox is not supported by Mac OS 10.3.9. All I can think of is trying to download and install an older version, but I don't see any options for this. Note: When I asked my old version of Firefox to check for updates, it said no updates were available. ?

User Agent

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)

I have an old Apple PowerBook G4. I've tried downloading Firefox 3.6.6. (using Firefox 2.0.0.20), but every time after the download seems successful, I get an error message saying: "Disk image failed to mount. Reason: corrupt image." I also noticed that the current version of Firefox is not supported by Mac OS 10.3.9. All I can think of is trying to download and install an older version, but I don't see any options for this. Note: When I asked my old version of Firefox to check for updates, it said no updates were available. ? == User Agent == Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)

All Replies (3)

more options

Firefox 2.0.0.20 is the last ever release for Mac OSX 10.3.9 and earlier versions. Get it here: http://download.mozilla.org/?product=firefox-2.0.0.20&os=osx&lang=en-US

more options

I have a Mac OS X v10.2; so what you're saying is if I ever want to access MySpace again I'm going to have to get a new computer? I guess I'll have to see if I can get there through Safari.

more options

See http://kb.mozillazine.org/Installing_Firefox The most recent Firefox version for OS X 10.2 and 10.3 is 2.0.0.20. Mac: http://download.mozilla.org/?product=firefox-2.0.0.20&os=osx&lang=en-US