- Open the Firefox profiles folder, which normally located at %AppData%\Mozilla\Firefox\Profiles\xxxxxxxx.default\, where xxxxxx is a random string. User should pick the profile folder (if inside Profiles folder there are multiple sub-folders) that are active, i.e. profile for user account to uninstall the extension.
- Open the extensions folder inside the profile folder.
- Each folder here inside the "extensions" folder corresponds to an extension. Some folders may have readable name that resembles the plugin, extension or toolbar, and can be easily recognized. Often the names of the folders are obscured. To identify which extension or plug-in the folder is representing, go to each folder and perform the following steps:
- Use a text editor to open the install.rdf file inside it.
- Search for the following text: em:name
- Locate the folder with install.rdf file with the name after the "em:name" corresponding to the extension intends to remove or delete.
- Delete the whole folder for the extension.
Technical notes, and other ideas.