Extensions or Apps Offered by webextensions.org
Crx4Chrome includes 2 extensions from the developer webextensions.org.
Magic CSS crx 8.22.3 for Chrome
About: Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, Less/Sass to CSS, beautify, CSS reloader, lint, ......
Close Tab by Double Right Click crx 1.1.0 for Chrome
About: Close tab by double right clicking anywhere on the page. Inspired by "Rights To Close" legacy extension for Mozilla Firefox....