Consider stripping `utm` parameters from mozilla links.
Split from #41910 (closed)
Currently some mozilla links within base browser add some parameters to the url: "utm_source", "utm_medium" and "utm_content". See https://searchfox.org/mozilla-esr115/search?q=utm_content&path=&case=false®exp=false
In particular, this came up in #41910 (closed) because moz-support-link
has a mechanism to add these.
A lot of these links are outside the tor browser UI (e.g. newtab and pocket). The only exceptions I found were in "about:addons", like the search url and the recommended badge link.