Play flash (.swf) files
This userscript sets instances for every flash object on page and will play it upon click (button Play ⚡). This program uses swf2js to make it possible to play .swf files.
BlockFlash2 https://userscripts-mirror.org/scripts/show/45343 Hides Flash animations until you click on individual [Play Flash] buttons. (v 0.4.) (Update of BlockFlash and BlockFlash-Revisited).
FlashBlock https://userscripts-mirror.org/scripts/show/46673 Press Alt+F or Ctrl+Shift+F for permanent unblocking.
BlockFlash-Revisited https://userscripts-mirror.org/scripts/show/6532 Do not start Flash animation until you click on them.
removeFLash https://userscripts-mirror.org/scripts/show/888 Removes Flash Commercials.
Hide Objects https://userscripts-mirror.org/scripts/show/3118 Hides object and embed tag contents by replacing it with an empty element. Click on the empty element to reveal the object tag contents.
FlashPlayer https://addons.mozilla.org/firefox/addon/flashplayer-swf-to-html/ Open SWF links of Adobe Animate (Flash) in a pure sandboxed JavaScript emulator.
Ruffle https://addons.mozilla.org/firefox/addon/ruffle_rs/ Ruffle seamlessly plays Flash content on sites you visit. Enjoy your favorite Flash games from yesteryear!
Read this: A Post-Mortem Of Ruffle's Removal From Addons Repository
Ruffle https://ruffle.rs ruffle is a Flash Player emulator built in the Rust computer language.
swf2js https://swf2js.com swf2js is Flash Player Runtime Engine written in pure JavaScript
.swf);document.contentType is application/x-shockwave-flash or text/plain;