Steps to replicate the issue (include links if applicable):

• Install Who-wrote-that in Firefox 120.0.1 (64 bit)
• Go to a Wikipedia page
• Go to plugins and try to use Who-wrote-that

What happens?:

• The plugin is disabled
  • Have tried setting about:config xpinstall.signatures.required to false but even that does not help

What should have happened instead?:

• the plugin should have shown itself as enabled and clickable

Software version (skip for WMF-hosted wikis like Wikipedia):

• Firefox 120.0.1 (64 bit) on Windows 11

Other information (browser name/version, screenshots, etc.):