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How to choose one of two installations of Firefox to be default browser on Mac

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dagezi
dagezi
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I've installed two versions of Firefox in one Mac, 68.8 esr and 80.0.1. Though I want 68.8 to work as default browser, when I clicked URL on other apps, new 80.0.1 opened it always. One preference screen, both installations say that "Firefox is currently your default browser". No UI to set one as default.

Anyway to specify it?

I've installed two versions of Firefox in one Mac, 68.8 esr and 80.0.1. Though I want 68.8 to work as default browser, when I clicked URL on other apps, new 80.0.1 opened it always. One preference screen, both installations say that "Firefox is currently your default browser". No UI to set one as default. Anyway to specify it?