4 ms·
Basics: Firebug https://addons.mozilla.org/en-us/firefox/addon/firebug/ YSlow https://addons.mozilla.org/en-us/firefox/addon/yslow/ CSS Helpers:
by weirdcat 14y ago
Basics:
Firebug
https://addons.mozilla.org/en-us/firefox/addon/firebug/
YSlow
https://addons.mozilla.org/en-us/firefox/addon/yslow/
CSS Helpers:
CSS Reloader
https://addons.mozilla.org/en-us/firefox/addon/css-reloader/
Firepicker
https://addons.mozilla.org/en-us/firefox/addon/firepicker/
FireDiff
https://addons.mozilla.org/en-us/firefox/addon/firediff/
Proxy/HTTP:
Tamper Data
https://addons.mozilla.org/en-us/firefox/addon/tamper-data/
FoxyProxy
https://addons.mozilla.org/en-us/firefox/addon/foxyproxy-standard/
Charles Proxy (has an autoconfigure add-on)
http://www.charlesproxy.com/
Database:
SQLite Manager
https://addons.mozilla.org/en-us/firefox/addon/sqlite-manager/