Dark Mode Website Switcher
Adjusts the website's color scheme, so that all websites are dark by default, if they have a special design for that. It makes websites look dark even with a light system style.
1,013 位使用者
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.
1,000 位使用者
show-my-ip
This add-on allows you to view your IP address from your browser without having to navigate to sites like https://www.whatismyip.com/ Furthermore, as this add-on is open source, you don't need to be worried about your privacy.
970 位使用者
Advent of Code Charts
Inject charts in your private leaderboard page for Advent of Code - see https://github.com/jeroenheijmans/advent-of-code-charts
953 位使用者
極客側邊欄：支援全球頂尖AI、書籤雲管理
整合了包括 ChatGPT、Claude、Grok、Gemini、DeepSeek、Qwen 等在內的全球多款頂尖大模型。一站式整合AI助手+書籤雲端管理+效率工具，支援書籤查重、書籤有效性檢測、AI整理書籤、網頁總結、文件分析、網頁截圖等強大功能。讓側邊欄化身成你的超級工作台！
953 位使用者
Online Tools by 10015.io
Case converter, image cropper, CSS triangle generator, base64 encoder/decoder, HEX to RGBA converter, YouTube thumbnail grabber, QR code generator and many more online web tools
951 位使用者
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
949 位使用者
Edit Anything
Edit Anything from Chrome is now on Firefox. Before It was on Chrome. Click icon to turn on. sets contentEditable to true. Click to set false. If on then click text/any other element and make the changes. Changes don't persist after reload.
945 位使用者
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.
934 位使用者
PageSpeed Insights
Open PageSpeed Insights to analyze the web page on the current opened tab.
931 位使用者
External Application Button (WebExtension)
A highly customizable external application button and context-menu items
926 位使用者
Slither.io Mods, Zoom, Unlock Skins, Bots
The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots
919 位使用者
HackBar
A HackBar for new firefox. This addon is written in webextension and alternatives to the XUL version of original Hackbar.
910 位使用者
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.
899 位使用者
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.
898 位使用者
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.
894 位使用者
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...
890 位使用者
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
889 位使用者
