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How do I roll back Firefox to version 129.0.2?

user133322527042866965461039824876264507515
user133322527042866965461039824876264507515
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Firefox updated today and it broke my custom theme. I just want to know how to revert to version 129.0.2

OS: Windows 11 Firefox Version: 130.0

If there's no way to revert, can I get information on how I can set a custom background?

Firefox updated today and it broke my custom theme. I just want to know how to revert to version 129.0.2 OS: Windows 11 Firefox Version: 130.0 If there's no way to revert, can I get information on how I can set a custom background?
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Chosen solution

Nevermind, I just needed to update Firefox GX.

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user133322527042866965461039824876264507515
user133322527042866965461039824876264507515 Question owner
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Chosen Solution

Nevermind, I just needed to update Firefox GX.