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

Why can't I update to Firefox 4 even though I'm running Mac OS 10.5.8?

more options

The site lists on its system requirements that I have either Mac OS 10.5.x or 10.6.x. I have 10.5.8 but the site says my operating system isn't compatible with Firefox 4. Am I overlooking something obvious here? Any suggestions would be appreciated! Thanks!

The site lists on its system requirements that I have either Mac OS 10.5.x or 10.6.x. I have 10.5.8 but the site says my operating system isn't compatible with Firefox 4. Am I overlooking something obvious here? Any suggestions would be appreciated! Thanks!

Chosen solution

http://www.mozilla.org/en-US/firefox/4.0/system-requirements/

to
http://www.mozilla.org/en-US/firefox/8.0/system-requirements/

Mac Operating Systems

   Mac OS X 10.5
   Mac OS X 10.6

Recommended Hardware

   Macintosh computer with an Intel x86 processor
   512 MB of RAM
   200 MB hard drive space


Firefox 3.6.* and earlier used to come with Intel and PPC versions in download, but now as of Firefox 4.0 and newer (including 8.0) the PPC version was replaced with 64-bit version.

Read this answer in context 👍 1

All Replies (4)

more options

Firefox 4+ versions aren't compatible with Power PC Mac's.

For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/

http://tenfourfox.blogspot.com/

more options

Seçilmiş Həll

http://www.mozilla.org/en-US/firefox/4.0/system-requirements/

to
http://www.mozilla.org/en-US/firefox/8.0/system-requirements/

Mac Operating Systems

   Mac OS X 10.5
   Mac OS X 10.6

Recommended Hardware

   Macintosh computer with an Intel x86 processor
   512 MB of RAM
   200 MB hard drive space


Firefox 3.6.* and earlier used to come with Intel and PPC versions in download, but now as of Firefox 4.0 and newer (including 8.0) the PPC version was replaced with 64-bit version.

Modified by James

more options

Dang, missed the Intel processor info. Thanks for the help, James!

more options

Thanks for the links. I'll check it out!