UserScript loaders for outdated or obscure browsers

I'm about to finish updating the advice on using [;\LaTeX;] on this subreddit, and while composing an earlier draft of that advice, I had discovered some UserScript loaders that work in situations that even the OpenUserJS project didn't bother covering:

• Firefox derivatives from before Quantum (version 57):
• Greasemonkey 3.17 for SeaMonkey or Waterfox, or install the Classic Add-Ons Archive extension and browse for Greasemonkey
• Opera (12 or earlier): Use native UserJS.
• ViolentMonkey extension for Opera 12 (desktop only)
• Safari 5.0 (desktop only): NinjaKit
• GreaseKit SIMBL plugin for older Safari (Mac-only)
• Maxthon: Use Violentmonkey.
• Internet Explorer (desktop only, 7+): Try IE7Pro, which might not work for IE9+.
• UC Browser: Use Tampermonkey.

I also vaguely remember Konqueror or K-Meleon or iCab (pre-WebKit) coming with some built-in UserScript loader; if you know about any, feel free to comment.