Strips garbage referer tracking fields like 'utm_source' from links. This is forked from the original Firefox extension. Pale Moon users can install the latest version directly from here.
By default it removes the most common tracking parameters like utm_source, you can customize it by adding your own in the Garbage fields list' in extension settings. This is a comma separated list where each field shown is automatically removed from all URLs. You can include domain specific filters, for example fbclid@facebook.com will only remove the parameter fbclid from the Facebook domain but allow it elsewhere.