OpenLorem
Lorem Ipsum filler text for web developers. Uses Loripsum, Bacon Ipsum and Dino Ipsum APIs to retrieve customized text. Insert into fields using context menu. Source code is available on Github.
900 brûkers
Penetration Testing Kit
Attention! This version is no longer supported. Use /firefox/addon/owasp-penetration-testing-kit/ extension instead.
899 brûkers
PageSpeed Insights
Open PageSpeed Insights to analyze the web page on the current opened tab.
897 brûkers
Resize Window & Viewport
Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.
880 brûkers
Flash Debugger
Debug Flash/SWF/Flex files on the web. Edit properties and inspect elements on the fly. View log output inside the extension. Run AS3 code against the active SWF. Profile memory consumption and much much more...
874 brûkers
Save to Trello
This firefox extension allows you to Create a Trello card from any webpage (including Gmail/webmail) / Ideal for Inbox Zero. You can save the current page to Trello. When you find something in Firefox that you want to view later put it in Trello.
865 brûkers
IP Whois
View info about IP, DNS records, SSL, country flag, domain whois, location, stats and more of any website.
847 brûkers
Mangools SEO extension
Speed up your SEO right in your browser: See the key SEO metrics, popularity trends, competitor's keywords, backlinks and on-page SEO insights of any domain or URL. Have the power of Mangools SEO package any time you need.
843 brûkers
ASBPlayer: Learn with Subs
Language learning subtitle player for streaming platforms like Netflix, YouTube, and more.
838 brûkers
SEO Inspector
SEO Inspector scans the active page and applies a set of customizable rules to its contents. The results of the scan are displayed on a simple, elegant interface for manual inspection.
837 brûkers
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
826 brûkers
Transparent standalone images
This add-on renders standalone images on a transparent background, so you can see the image in all its glory!
824 brûkers
Simple Link Checker
Redirect Link Checker will check all links on your page to find broken and redirect links
815 brûkers
ProxyControl
Manage setting of connect of proxy in your browser so quickly and so easily as you want.
813 brûkers
Open With Photoshop
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
801 brûkers
Color Picker
A simple color picker extension. Easily pick any color on the screen, view history of picked colors, and copy or clear them with a single click.
791 brûkers
