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- 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. How
by ahmetcadirci25 1y ago
- 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 Windows:
https://apps.microsoft.com/detail/9mvzqvxjbq9v https://apps.microsoft.com/detail/9mvzqvxjbq9v
https://apps.microsoft.com/detail/9n4d0msmp0pt https://apps.microsoft.com/detail/9n4d0msmp0pt
- sebstefan 1y ago>- The other issue was related to codecs. On Windows, I encountered an error message saying: "No video with supported format and MIME type found." I did get that for a few days! But then it went away. By itself.
- kingosam 1y agoIf I recall signatures.required is disabled in main firefox for security reasons. You need Firefox Nightly or Firefox Dev edition to use it. Anyway I changed to chrome for my plugin. Edit: found some info about it > Setting xpinstall.signatures.required to false will not work on the Beta or Release versions of Firefox on Mac or Windows. Doing so has no effect. On Linux, depending on your distribution, the setting may be respected and does work on some distributions of the release version of Firefox. https://superuser.com/questions/1432789/all-of-my-firefox-add-ons-have-been-disabled-suddenly-how-can-i-re-enable-them https://superuser.com/questions/1432789/all-of-my-firefox-ad...