Firefox add-on with keyword - checker

With this extension you can check text with the free 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.

Improve your writing with Grammarly's assistance. Get spell check, grammar check, and punctuation check in one tool. Real-time suggestions for improving tone and clarity help ensure your writing makes the impression you want.

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Shows the float value, paint seed, and screenshots of Counter-Strike (CS:GO & CS2) items on the Steam Market or Inventories

Get desktop notifications, read, listen or delete emails without opening Gmail or Inbox by Gmail & easily manage multiple accounts.

This is a real time spell checker for Hindi, supported on Firefox, Thunderbird, and Seamonkey.

Very lightweight Firefox 57+ (WebExtension) Compatibile Gmail checker Add-On. Onclick: open GMail. English version.

The easiest and simplest way to check for PlugIn-Updates. Never forget to install the newest safe versions.

Check the quality of your proxies' IPs in bulk.

Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.2

Explore the web and lookup articles you find on Ground News

A SEO tool to find broken (404) and redirected (301, 307, 308) links in all frames

Opens your Gmail inbox when you click the button.

This plugin allows you to check any file you are about to download, any page you are about to visit with online version of Dr.Web anti-virus.

Check if the current url has been submitted to reddit.

Kannada Spell Checker

Jumpstart your web accessibility efforts directly in Firefox. Is your web page accessible for everyone? Assess the accessibility of your web pages conveniently in Mozilla Firefox browser with the Siteimprove Accessibility Checker.

Telugu Spell Checker

Gujarati Spell Checker

See your next events, get meeting desktop notifications, add or snooze events without opening the Google Calendar page!

Redirect Link Checker will check all links on your page to find broken and redirect links

Measure the page ranks of your site

Armenian spell checker dictionary

Automatically check all the downloads files against well-known anti-viruses using VirusTotal API

Create compelling content with Linguix grammar checker and rewriter.