Grammar and Spell Checker - LanguageTool EN
LanguageTooler GmbH · Firefox
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.
<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
Check your texts for spelling and grammar problems everywhere on the web
★ Finds many errors that a simple spell checker cannot detect
★ No registration needed
★ Supports more than 25 languages (see below)
★ Works on almost any website including Gmail, Facebook, X/Twitter
This extension ensures that your writing is error-free via the grammar and style checker LanguageTool. LanguageTool detects many errors that a simple spell checker cannot, such as grammar issues, commonly confused words, and punctuation oversights. Additionally, LanguageTool offers style suggestions to elevate your writing: synonym replacements for overused words, concise rephrasing of wordy sentences, and formal alternatives to commonly used expressions.
LanguageTool is designed with simplicity in mind, instantly analyzing your text as you type. It is compatible with most platforms, including social networks such as X/Twitter and LinkedIn, and e-mail services such as Gmail.
With LanguageTool, our aim is to give users a full-feature grammar checker and proofreader that will enable them to have control and confidence over their content. While LanguageTool is a vital extension for non-native speakers, it also recognizes many mistakes that are frequently made by native speakers. This grammar and spelling correction works across several varieties of commonly spoken languages, and is capable of distinguishing between American and British English. LanguageTool also features a personal dictionary for exceptions or words that you might commonly use, but are not found in a conventional dictionary; it will learn to recognize these words for future grammar checking and proofreading.
Unlike other services like Grammarly (a.k.a. Grammerly :-), QuillBot, and Ginger, LanguageTool supports more than 25 languages including English, Spanish, French, German, and Polish (see below for the complete list).
Your privacy is important to us: By default, this extension will check your text by sending it to <a href="https://languagetool.org">languagetool.org</a> over a securely encrypted connection. No account is needed to use this extension. We don't store your IP address. See <a href="https://languagetool.org/privacy/">https://languagetool.org/privacy/</a> for our privacy policy.
List of supported languages: English (Australian, Canadian, GB, New Zealand, South African, US), French, German (Austria, Germany, Swiss), Asturian, Belarusian, Breton, Catalan (also Valencian), Chinese, Danish, Dutch, Esperanto, Galician, Greek, Italian, Japanese, Khmer, Persian, Polish, Portuguese (Brazil, Portugal, Angola, Mozambique), Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Tagalog, Tamil, Ukrainian, Arabic
Grammar and Spell Checker - LanguageTool 是做什么的
Grammar and Spell Checker - LanguageTool 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：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.在Firefox 附加组件商店（AMO）上，它当前版本 11.3.1，评分 4.31（5432 人评价），约 316,712 名用户。
适合什么人用
从功能定位看，Grammar and Spell Checker - LanguageTool 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 Grammar and Spell Checker - LanguageTool
- 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
Grammar and Spell Checker - LanguageTool 是免费的吗？
Grammar and Spell Checker - LanguageTool 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。
Grammar and Spell Checker - LanguageTool 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。
Grammar and Spell Checker - LanguageTool 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 Grammar and Spell Checker - LanguageTool？
在扩展管理页找到 Grammar and Spell Checker - LanguageTool，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 10
*://docs.google.com/document/**://docs.google.com/presentation/**://languagetool.org/*file:///*http://*/*http://localhost:8000/*/webextension/premium-announcement*http://localhost:8000/webextension/premium-announcement*https://*/*https://languagetool.org/*/webextension/premium-announcement*https://languagetool.org/webextension/premium-announcement*
接口权限 5
activeTabalarmscontextMenusscriptingstorage