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older version of firefox

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lwesc87
lwesc87
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I have an older iMac desktop (system is 10.11.6). It can no longer be upgrade to newer systems. I had firefox on it, but am doing some updating of security info and saw that there was a newer version of Firefox than what I was using. I tried to upload it but it said I needed to discard the older version. So I did that. Then when I tried to upload the newer version, it said I couldn't because my system is not compatible (needs at least 10.12).

How can I put the older version back on my computer?

I have an older iMac desktop (system is 10.11.6). It can no longer be upgrade to newer systems. I had firefox on it, but am doing some updating of security info and saw that there was a newer version of Firefox than what I was using. I tried to upload it but it said I needed to discard the older version. So I did that. Then when I tried to upload the newer version, it said I couldn't because my system is not compatible (needs at least 10.12). How can I put the older version back on my computer?

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cor-el
cor-el
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You need the last Firefox 78 ESR version (78.15.0). All Firefox releases on the Mozilla server: