Prohledat stránky podpory

Vyhněte se podvodům. Za účelem poskytnutí podpory vás nikdy nežádáme, abyste zavolali nebo poslali SMS na nějaké telefonní číslo nebo abyste sdělili své osobní údaje. Jakékoliv podezřelé chování nám prosím nahlaste pomocí odkazu „Nahlásit zneužití“.

Zjistit více

Firefox downgrade

more options

I accidentally updated my Firefox and cannot open it now. I am on a Mac operating system 10.10.5. And I can't upgrade my OS because of work. What version of Firefox do I need?

I accidentally updated my Firefox and cannot open it now. I am on a Mac operating system 10.10.5. And I can't upgrade my OS because of work. What version of Firefox do I need?

Všechny odpovědi (2)

more options
more options

I think actually you might need the previous one (78 instead of 91):

https://archive.mozilla.org/pub/firefox/releases/78.15.0esr/mac/en-US/

If you want a language-locale other than U.S. English, click the .. link on that page and then click into the desired locale.

Once you have the .dmg file, the installation steps are the same as this support article: How to download and install Firefox on Mac.