[efskap]

>Firefox doesn't allow you to bypass its marketplace and load extensions that you build from source yourself

It's less than ideal but you can 1) load extensions temporarily in about:debugging, 2) turn off xpinstall.signatures.required in nightly or dev edition to install them for good or 3) sign on addons.mozilla.org without publishing to the marketplace.

[userbinator]

Or 4) patch the checks out yourself. As they say, "Firefox is open-source for a reason."

[ozim]

It might actually be something I would do especially as I could probably vibe code and vibe build it.

Will see if I get time to do so.