Grammar and Spell Checker - LanguageTool
With this extension you can check text with the style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
422,034 个用户
Awesome Screenshot & Screen Recorder
Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.
112,563 个用户
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
34,963 个用户
Checker Plus for Gmail
显示 谷歌邮箱 收件箱中的新邮件和联系人照片；通过桌面通知获得新邮件提醒；不打开Gmail网页就能收取、阅读和删除邮件。更多功能待你发现！
31,364 个用户
PocketTube: Youtube Subscription Manager
The best way to group your subscriptions Using this simple extension you can create collections that seamlessly fit into YouTube's layout.
21,183 个用户
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
9,068 个用户
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
882,285 个用户
Grammarly: AI Writing and Grammar Checker App
From blank page to polished draft, Grammarly’s AI helps you write faster and stronger. Get real-time grammar fixes, tone transformations, and instant content generation right where you write in Firefox.
620,333 个用户
Browsec VPN
Unblock geographically restricted content and protect your IP with Browsec’s add-on. With this Firefox VPN extension, you can stay anonymous for an unlimited time! Use free remote servers to hide your location and access any content you want.
488,788 个用户
LastPass Password Manager
LastPass是一款让您的上网浏览更便捷更安全的免费在线密码管理器和表单过滤器。LastPass以插件的形式支持IE和Firefox（Opera, Safari, Chrome, iPhone,Opera 通过书签小工具形式支持），它允许您从任何主流的密码存储器导入和导出密码，捕获其它管理器无法捕获的密码包括很多AJAX表单。它也允许您轻松地创建强大的密码。您的敏感信息在上传之前已在本地计算机上加密，因此就算是LastPass的员工也无法得到密码信息。一次性密码和屏幕键盘帮助保护您的主密码。
444,349 个用户
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
318,832 个用户
Firefox Relay
Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail.
247,748 个用户
Zoom Extension
Recommended, support Firefox 45+. The Zoom Firefox Extension allows participants to schedule Zoom cloud meetings directly from Google Calendar. You can start an instant meeting or schedule a future meeting with a button.
216,288 个用户
7TV
Improve your viewing experience on Twitch and YouTube with new features, emotes, vanity and performance.
209,457 个用户
整页截图工具 — FireShot
FireShot 可捕获整页截图、可见区域以及超出屏幕范围的精确选区。快速、简单、私密并可离线使用。支持将网页保存为 PDF 以建立数字档案，也可保存为 PNG、打印或复制到剪贴板，非常适合浏览、研究、工作与文档整理。
166,150 个用户
