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Revert to older version of Firefox

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  • 最近回覆由 FredMcD

I have an old Macbook Pro, model 5.5 from 2009 running OS 10.6.8. I was running Firefox v48 on it, but couldn't open a particular webpage. So I tried to update Firefox to the latest version, v82. Stupidly I overwrote the old version. Turns out the latest v of Firefox won't open or install on my old Mac OS. I should have known this. Anyway, too late.

Is there any way of recovering v48? Or of downloading it again? I've read the warnings about security holes etc, and I know the risks. I would like to get Firefox running on this old Mac again if possible. All advice gratefully received! Thank you. Charlie

PS - I'm writing this from my newer Mac, with the latest OS and Firefox installed.

I have an old Macbook Pro, model 5.5 from 2009 running OS 10.6.8. I was running Firefox v48 on it, but couldn't open a particular webpage. So I tried to update Firefox to the latest version, v82. Stupidly I overwrote the old version. Turns out the latest v of Firefox won't open or install on my old Mac OS. I should have known this. Anyway, too late. Is there any way of recovering v48? Or of downloading it again? I've read the warnings about security holes etc, and I know the risks. I would like to get Firefox running on this old Mac again if possible. All advice gratefully received! Thank you. Charlie PS - I'm writing this from my newer Mac, with the latest OS and Firefox installed.

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Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements