Rated 5 out of 5 stars

per Firefox user d1abf1 el des. 8, 2021 ·

Very useful plugin. Native Thunderbird lacks this feature.

It would be even more useful, if the [Show HTML] button could hide html again on a second click.

This review is for a previous version of the add-on (7.0). 

per Alexander Ihrig (desenvolupador) a gen. 7, 2022 ·

Reverting to plain text is possible by Shift+Click