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I cannot open Firefox but Safari opens fine. Tried to download Firefox, but new version not compatible with iMAC G5

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  • Last reply by cor-el

JudyHoyt
JudyHoyt
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I have been using Firefox for several years on my iMAC G5, running MAC OS 10.5.8. This morning, Firefox won't open. Tried opening from the icon in the Applications folder, but still won't open. Safari opens without difficulty. Tried downloading Firefox again, thinking a file might have been corrupted, but new version is not compatible with my desktops hardware. Can I find a compatible version of Firefox? My NAV for MAC security software isn't interfering.

I have been using Firefox for several years on my iMAC G5, running MAC OS 10.5.8. This morning, Firefox won't open. Tried opening from the icon in the Applications folder, but still won't open. Safari opens without difficulty. Tried downloading Firefox again, thinking a file might have been corrupted, but new version is not compatible with my desktops hardware. Can I find a compatible version of Firefox? My NAV for MAC security software isn't interfering.

Chosen solution

For an unofficial Firefox 4 compatible version (TenFourFox) that runs on PowerPC Macs with OS X 10.4.11 or OS X 10.5.8 you can look at:

Firefox 3.6.x (Mac OS X 10.4 and later) can be found here:

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cor-el
cor-el
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Suluhisho teule

For an unofficial Firefox 4 compatible version (TenFourFox) that runs on PowerPC Macs with OS X 10.4.11 or OS X 10.5.8 you can look at:

Firefox 3.6.x (Mac OS X 10.4 and later) can be found here: