This is it. I'm done with Page Translator, but you don't have to be. Fork the repo. Distribute the code yourself. This is now a cat-and-mouse game with Mozilla. Users will have to jump from one extension to another until language translation is a standard feature or the extension policy changes.

I will need to find a workaround for one of my private extensions that controls devices in my home network, and its source code cannot be uploaded to Mozilla because of my and my family's privacy.

The other pressing issue is that users have lost the right to run private extensions in the release version of Firefox, without needing to hand over their source code to Mozilla.

Add-ons that are intended for internal or private use, are only accessible to a closed user group, or for distribution testing may not be listed on AMO. Such add-ons may be uploaded for self-distribution instead.

You can now distribute your add-on. Note, however, that your add-on may still be subject to further review, if it is you’ll receive notification of the outcome of the review later.