| Web Developer | [Fx_MinVer] | - | [Fx_MaxVer] | [Japanese] |
| ColorZilla | | - | | |
| Console2 | | - | | |
| CookieWatcher | | - | | |
| Deepest Sender | | - | | |
| EditCSS | | - | | |
| Execute JS | | - | | |
| Firebug | | - | | |
| Font Finder | | - | | |
| Html Validator | | - | | |
| InspectThis | | - | | |
| JSView | | - | | |
| MeasureIt | | - | | |
| MileWideBack | | - | | |
| PHPdebugger | | - | | |
| PageDiff | | - | | |
| SEOpen | | - | | |
| Selenium IDE | | - | | |
| Server Switcher | | - | | |
| SourceEditor | | - | | |
| TortoiseSVN Menu | | - | | |
| Validaty | | - | | |
| View Source Chart | | - | | |
| X-Ray | | - | | |
| XPath Checker | | - | | |
| Xinha Here! | | - | | |
| AMF Explorer | | - | | |
| ASP.NET Viewstate Viewer | | - | | |
| Acebug | | - | | |
| AdMatrix Analytics | | - | | |
| Add-on SDK Examples | | - | | |
| Adobe BrowserLab for Firebug | | - | | |
| Advanced Frame Designer | | - | | |
| Affilorama SEO Toolbar | | - | | |
| Animat | | - | | |
| Auto Reload | | - | | |
| Auto-Open Browser Console | | - | | |
| Blank Scratchpad | | - | | |
| Browser Calories | | - | | |
| Browser Console Button | | - | | |
| CSS Reload | | - | | |
| CSS Reloader | | - | | |
| CSS Usage | | - | | |
| CSSViewer | | - | | |
| CSSsir | | - | | |
| CacheToggle | | - | | |
| Chrome List | | - | | |
| CodeBurner for Firebug | | - | | |
| CodeBurner for Firefox | | - | | |
| Colorblind Design | | - | | |
