Rated 4 out of 5 stars

Updated review:
Thank you for your response. As a Mint Linux user we are recommended to only use approved versions available in the repository. As the newer version of Thunderbird has not yet been added, I am stuck with 1.15 for now. I have downloaded the older version and this has resolved the issue. Hopefully, in the future, we will see translation within the email itself. Thank you again for your assistance. I will be turning off automatic updates for this add-on.

Earlier review: "Stopped working suddenly. Restarts and re-installs do nothing. It simply no longer appears in the right-click menu. Please fix as this is literally the only option for translation *within* Thunderbird. I will go back to copy and paste to external browser until this gets updated."

Developer's response: "Hello,
The issue has been identified, more info here:
https://github.com/fastaddons/WebTranslate/issues/18

Basically, you are most likely using unsupported version of Thunderbird 115 (or a clone based on this version).
Upgrading to latest version 128 will fix the issue.
Alternatively, you can install the previous version of my addon (5.5) which still works on Thunderbird 115:
https://addons.thunderbird.net/en-US/thunderbird/addon/web_translate/versions/

But I would strongly recommend upgrading your Thunderbird client as the older version are not receiving security patches.

Best Regards,
Juraj Mäsiar"

This user has a previous review of this add-on.

Hello again :),
There is no need to disable updates. I've already marked 5.6 as compatible with Thunderbird 128, so it won't auto-update existing users.
It was a mistake on my part not changing minimum supported version in the last release.
But seeing how this affect even normal Linux users, I'll most likely tomorrow release 5.7 with backwards compatibility with 115 to fix this mess...
Thanks again for the info!
Best Regards,
Juraj Mäsiar