Quick Accept-Language Switcher
Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.
998 пользователей
External Application Button (WebExtension)
A highly customizable external application button and context-menu items
965 пользователей
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.
965 пользователей
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.
958 пользователей
Advent of Code Charts
Inject charts in your private leaderboard page for Advent of Code - see https://github.com/jeroenheijmans/advent-of-code-charts
954 пользователя
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 пользователь
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.
943 пользователя
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
942 пользователя
Ultra Volume Booster
Boost audio volume up to 1000% with a sleek dark glassmorphism UI
935 пользователей
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.
926 пользователей
Slither.io Mods, Zoom, Unlock Skins, Bots
The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots
910 пользователей
PageSpeed Insights
Open PageSpeed Insights to analyze the web page on the current opened tab.
908 пользователей
极客侧边栏-免费DeepSeek丨书签云同步
使用ChatGPT、Claude、Grok和DeepSeek进行高效创作。一站式整合AI助手+书签云管理+效率工具，支持书签查重、有效性检测、AI整理书签、网页总结、文档分析、网页截图等强大功能。让侧边栏化身成你的超级工作台
903 пользователя
SQLite Viewer
A tabular SQLite viewer and editor that supports opening of multiple databases
879 пользователей
Rotate that Video Player
Improve your video experience by effortlessly rotating your video clips by 90, 180, or 270 degrees.
877 пользователей
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.
872 пользователя
