Grammarly: AI Writing and Grammar Checker App EN
Grammarly · Firefox
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.
<all_urls>），意味着它可以读取你在任意站点的页面内容，包括已登录的页面。这是许多扩展正常工作的必要条件，但也值得你确认来源可信。
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简介
Grammarly for Firefox is your always-on assistant for clearer, more compelling communication. It helps you brainstorm ideas, overcome writer’s block, and refine your writing with confidence, precision, and ease.
Powered by advanced AI, Grammarly does more than correct mistakes. It generates one-click drafts to help you get started, builds organized outlines, sharpens tone for any audience, and adapts to your goals as you write—whether you're working on a school assignment, a business email, or anything in between.
With built-in plagiarism detection and AI content checks, Grammarly supports originality while helping you write faster, sound sharper, and communicate more effectively—anywhere you write online.
➤ How it works
Grammarly works right where you do—in your browser—offering real-time feedback as you type in emails, documents, and more.
It goes beyond surface-level edits by offering suggestions that help you organize your ideas, strengthen your arguments, and tailor your tone to your audience. Whether you’re tightening a sentence or reworking a full draft, Grammarly adapts to your goals, context, and intent in real time.
You can apply suggestions instantly or expand them to see the "why" behind each one—putting you in control and helping you build stronger writing habits with every edit.
➤ What’s included?
~ Free
Everything you need to write more clearly and confidently:
• Real-time grammar, spelling, and punctuation feedback
• Suggestions to improve clarity and tone
• Auto-citations in APA, MLA, or Chicago style
• Built-in AI to help you brainstorm, draft, and rewrite content
~ Pro
Advanced support for high-impact writing:
• Sentence rewrites to improve clarity, flow, and engagement
• Tone, formality, and word choice enhancements
• Feedback tailored to academic, technical, or professional contexts
• Audience insights to guide how your message is received
• AI content detection and plagiarism checks for originality
• Team features like style guides and tone profiles (for business users)
➤ Terms and Conditions
By installing the extension, you agree to and acknowledge:
www.grammarly.com/terms
www.grammarly.com/privacy-policy
➤ Works where you write
Grammarly integrates directly into your browser—no copying and pasting needed. Get writing support across:
• Google Docs
• Gmail
• LinkedIn
• And 500,000+ apps and websites
➤ Get Grammarly on your desktop
Want Grammarly in Word, Outlook, Slack, and more? Download Grammarly for Windows or Mac: www.grammarly.com/desktop
➤ Explore docs, Grammarly's new AI writing surface
Looking for a powerful space to write and refine your ideas? Docs is Grammarly’s dedicated writing surface built for deep focus and support at every step. Unlike the Firefox extension or desktop app, it’s your all-in-one hub for strategic insights, from audience reactions to grade predictions.
Go from blank page to polished piece—all in one intelligent space. Learn more about docs and how it can transform your writing: www.grammarly.com/docs
➤ Trusted by millions of users
“Grammarly ensures your messages are professional and grammatically correct by offering spell-checking, tone suggestions, and even vocabulary hints.” —Forbes
“It’s the go-to service for fixing grammar, punctuation, and awkward sentences for professionals, college students, and people who write for a living.” —Inc.
“Unlike basic spell checkers, Grammarly is a complete writing assistant app.” —PC Mag
➤ We value your trust
Your data privacy and security are at the core of everything we do. Learn more about our user-first approach to trust and safety: www.grammarly.com/trust
California residents, please see the California Privacy Notice: https://www.grammarly.com/privacy-policy#sectionSingleColumn_47y4NWiOf89wt12wcc6a74
Grammarly: AI Writing and Grammar Checker App 是做什么的
Grammarly: AI Writing and Grammar Checker App 是一款面向 Firefox 的语言辅助类扩展，主要用来划词翻译、语法校对、词典查询。官方对它的介绍是：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.在Firefox 附加组件商店（AMO）上，它当前版本 8.937.0，评分 4.08（3226 人评价），约 528,541 名用户。
适合什么人用
从功能定位看，Grammarly: AI Writing and Grammar Checker App 更适合需要阅读外文资料或写英文内容的用户。如果你平时只是偶尔遇到相关需求，用浏览器自带功能也能凑合；但如果这件事每天都发生，装一个专门处理它的扩展通常比手动操作省事得多。需要注意的是它作用于所有网站，装上后建议先观察一两天，确认不影响常用站点的正常使用。
怎么安装 Grammarly: AI Writing and Grammar Checker App
- 打开Firefox 附加组件商店（AMO）上的官方页面；
- 点「添加到浏览器」并确认权限提示；
- 装好后在扩展列表里固定图标，方便随时开关。
本站只做索引与介绍，安装包来自官方商店。如果商店页面提示当前地区不可用，说明该扩展未在你所在区域上架。
常见问题
Grammarly: AI Writing and Grammar Checker App 是免费的吗？
Grammarly: AI Writing and Grammar Checker App 在Firefox 附加组件商店（AMO）免费提供下载。它是浏览器扩展，装上就能直接用，不需要注册账号。
Grammarly: AI Writing and Grammar Checker App 安全吗？
它只申请了 0 项权限，范围比较克制，没有申请「读取所有网站数据」这种大权限。
Grammarly: AI Writing and Grammar Checker App 支持哪些浏览器？
当前收录的版本来自Firefox 附加组件商店（AMO），适用于 Firefox。同一个扩展在其他商店可能有对应版本，但功能与版本号不一定相同。
怎么卸载 Grammarly: AI Writing and Grammar Checker App？
在扩展管理页找到 Grammarly: AI Writing and Grammar Checker App，点移除即可。它在本地保存的设置会一起清掉，不会残留数据。
权限清单 来自 manifest.json 原文
站点访问 96
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接口权限 5
cookiesidentitynotificationsstoragetabs
接口权限（可选） 2
clipboardReadnativeMessaging