Where are Firefox extensions?

You can generate a list of UUIDs belonging to each of your extensions by pasting that into your browser's address bar: Those UUIDs should match up with the folders to determine which folder belongs to which extension.

It’s possible that there is a problem with the file (s) that store the extensions registry. Type about:support in the address bar and press enter. Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder.

To find the add-ons folder, you need to begin by locating your Firefox profile folder. This folder is unique to each user and houses various files and subfolders related to your personal Firefox settings. Once you locate the profile folder, you can naviga

您對 Firefox 瀏覽器所做的任何變更（例如主頁、安裝的擴充功能或已儲存的密碼）都可以輕鬆儲存在稱為設定檔的特殊資料夾中。

Where do Firefox extensions (.xpi files) go when downloaded/installed? I want to know the location (path) of extracted extension files.

All of the changes you make in Firefox, such as your home page, what toolbars you use, extensions you have installed, saved passwords and your bookmarks, are stored in a special folder called a profile.