I have Tampermonkey installed and enabled, and I use Firefox Quantum. There are some userscripts related to Twitter that I can verify DO work correctly, such as "Dowload Twitter Videos" But the userscript I really want to get working is called "Twitter Filter" https://greasyfork.org/en/scripts/34646-twitter-filter Here is some background info. -I used to have greasemonkey scripts working, but they stopped working (possibly about the same time that I installed Tampermonkey?) -So I dis-abled greasemonkey, and only have the Tampermonkey engine enabled at the moment. -There is no way in he11 I want to ever LOGIN to Twitter and use their twitter-supplied...