Earlier quoted context omitted.
> - I can't run the extensions I develop in dev mode. I haven’t been able to find a solution for this. That said, I don't encounter this issue in LibreWolf. I don't have this problem. I was gonna type a long winded thing to descrbe how I do it but since you managed to make it work in LibreWolf it's likely not an issue with how you're doing it >- I experience video codec issues, which I hope I’m not the only one facin…
- In Librewolf, when I set the `xpinstall.signatures.required` preference to `false` in the `about:config` section, I'm able to install my `.xpi` extension. However, this setting doesn't work in Firefox. - The other issue was related to codecs. On Windows, I encountered an error message saying: "No video with supported format and MIME type found." The issue was resolved after installing the following codecs on Window…
I did get that for a few days!
But then it went away. By itself.