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How can a beta version of an addon be installed?

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  • 1 has this problem
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  • Last reply by sfhowes

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I may like to try adding the beta version of ReplyWithHeader, but I can't find the option to do so. The version history doesn't even list the beta version. I'm using Thunderbird 68.2.2.

I may like to try adding the beta version of ReplyWithHeader, but I can't find the option to do so. The version history doesn't even list the beta version. I'm using Thunderbird 68.2.2.

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