How do I downgrade Firefox in Zorin 15.3 Lite

For some reason I updated Firefox (to 102.1.0esr 32-bit), and now it crashes whenever there's more than 5-6 tabs open. How do I go about reverting back to an older version, like 102.0.1esr? (I hope this question is not out of place on the Zorin forums.)

I guess I could fully uninstall the current version, and then install the older version from scratch, but I don't want to lose the current bookmarks, settings, etc.

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Would this help?

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There should be an option to export bookmarks as an HTML file.

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Before uninstalling did you tried changing Performance settings?

If you want you can create a Firefox account to save them online, then once you install the other Firefox you log in to restore them.