Support "Install from file" in Firefox

[nemkicsiaron]

Describe the bug
Trying to add the extension to Firefox via "Install from file" fails because "the app appears to be corrupt":

To Reproduce
Try adding the newest release to Firefox

Expected behavior
A clear and concise description of what you expected to happen.

Environment

• Firefox Version 124.0.1 (64-bit)
• Devtools version 2.2.0 .zip Release [e.g. 1.3.1, built from master]

Additional context
Running on Windows 11

[davidjayb]

You need to add this through Load Temporary Add-on in about:debugging:

https://extensionworkshop.com/documentation/develop/temporary-installation-in-firefox/

I believe @ignatiusmb is still working on getting this published as a full add on for Firefox.

[ignatiusmb]

Yes, please load it as a temporary add-on for the time being. We're still in the process of validating the extension before it can be loaded from "Install from file". I'll adjust the title to reflect it clearer.

[ignatiusmb]

Per v2.2.1 release, .xpi files are now available to download and install for Firefox.

[rdrpenguin04]

Looks like README still needs to be updated to reflect the xpi files being available

[ignatiusmb]

@rdrpenguin04 thanks! #221