HTTP request maker
Displays a sidebar that lets you to forge HTTP requests. Press Alt+Shift+Y to show the sidebar and make your own HTTP request. You can choose the method GET, HEAD, POST, OPTIONS, PUT DELETE and the body data to send. Response in the main window.
3.026 gebruikers
CookieManager - Cookie Editor
Edit cookies related to the current page and all its sub-frames right from a popup
2.944 gebruikers
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
2.909 gebruikers
Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
2.903 gebruikers
Google Analytics Debugger
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript. P.S: this add-on is migrated from Chrome store.
2.896 gebruikers
Basic JSON Formatter
Adds a page action to pretty-print JSON. Unlike similar extensions, this simply pretty-prints it. It doesn't add any kind of viewer, colors, or collapsing. If you want this to work as expected, disable devtools.jsonview.enabled in about:config.
2.890 gebruikers
Print for Firefox
Print de huidige pagina die u ziet met een enkele klik. Dat voor allerlei soorten fotoafdrukken, posters, visitekaartjes, enz.
2.688 gebruikers
Try XPath
This add-on displays the result of evaluating XPath expression or CSS selector.
2.630 gebruikers
webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
2.617 gebruikers
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2.614 gebruikers
dataslayer
Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.
2.543 gebruikers
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
2.540 gebruikers
SN Utils
ServiceNow Productivity tools. (Personal work, not affiliated to ServiceNow)
2.518 gebruikers
Pesticide
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.
2.431 gebruikers
ReCaptcha Solver
Verify Google ReCaptcha V2 automatically with :2Captcha, DeathByCaptcha, ImageTyperz, RuCaptcha, Anti-Captcha, BestCaptchaSolver and EndCaptcha Without API or TOKEN key it won't work!!
2.420 gebruikers
Chat GPT for Google
See the ChatGPT responses right next to your search engine results. https://extensionchatgpt.com/ See our youtube guide: https://www.youtube.com/watch?v=p9it2NCB3_c
2.406 gebruikers
