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how to downgrade firefox to version before update

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fp4fx7z4mf
fp4fx7z4mf

after the latest update, youtube doesn't work properly

after the latest update, youtube doesn't work properly

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You can download previous versions at: https://support.mozilla.org/en-US/kb/install-older-version-firefox

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wxie
wxie

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You can download previous versions at: https://support.mozilla.org/en-US/kb/install-older-version-firefox

cor-el
cor-el
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What kind of issues do you have with the 149.0 version you have installed according to the Troubleshooting Information you supplied?

Note that 149.0.2 has been released to address some issues.

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