Hello and thanks for making this addon!
I had written something similar as an userscript (never released to the public). My goal was to rip out unnecessary query strings (especially tracking ones), defuse clicktrackers ("you are about the be redirected to foo") and other unwanted junk in URLs.
Looks like you just made my userscript obsolete! I'd like to merge my ruleset into yours to make it more complete. However it seems your rules mainly concern tracking junk. Can you tell me, do you accept cosmetic rules? Or quality-of-life rules?
Some examples from my ruleset:
ssPageName on Ebay articles. It serves no purpose, but clutters up the URL
.../forum/proxy.php?image=... on Xenforo forums, used as a clicktracker/proxy for images