How to Add Grammarly to Firefox

As a frequent user of Grammarly, I know just how helpful it can be for catching errors and improving writing. But I’ve also seen many people get stuck when trying to add Grammarly to Firefox. They often don’t know where to start or what steps to follow. I’ve been there myself, so I’m here to make the process as simple as possible. In this guide, I’ll walk you through every step of installing Grammarly on Firefox, ensuring you get it up and running smoothly. Plus, I’ll share a little extra tip for making your writing even more natural.

What Is Grammarly for Firefox?

Grammarly is pretty much the most popular and most used writing assistant tool out there. It was actually one of the first ones that became famous for its help in grammar, spelling, punctuation, and even tone. Now i had a lot of issues with tone, and sometimes when writing a long essay or paper for some course, I used to miss out on punctuation which would cost me marks and bring down my

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already poor grade but one day one of my friends introduced me to this brilliant tool, it saved so much time for me which would otherwise be spent proofreading and correcting my own work for a millenia and then it would still look like an absolute word salad.

It helped ensure my tone was proper and consistent. Now, whenever I'm drafting an email, writing a blog, or working on an academic paper, Grammarly catches and corrects my mistakes on the spot and gives me suggestions to improve it on the spot.

Key Features:

• Grammar & Spelling Checks: Automatically highlights and corrects grammar and spelling mistakes in real-time.

• Tone Detection: Helps you set the right tone, whether you’re writing a formal email or a friendly social media post.

• Style Suggestions: Offers tips on improving clarity, conciseness, and overall readability.

• Vocabulary Enhancement: Suggests synonyms to elevate your writing and avoid repetition.

Firefox-Specific Extension:

Now there are a couple of differences between Firefox Grammarly and the chrome version. I’ve used both versions, and I noticed one thing: the Firefox extension runs more efficiently within the Firefox browser. The Grammarly Firefox extension integrates smoothly with Firefox’s WebExtensions API, which essentially means that it runs faster and is way lighter than the Chrome version.  

However, one thing I’ve noticed is that, unlike when I work on Chrome, the Grammarly icon that pops up everywhere and helps me in most cases wasn’t available everywhere in the Firefox version. For example, when I was writing something on Google Docs, there was no help from Grammarly since there’s no direct integration. It made me feel like a caveman staring at a very complicated mathematical problem. Still, despite this, Grammarly works perfectly on most platforms.

Supported Platforms & Requirements:

To use Grammarly on Firefox, you need:

• Firefox version 78 or later

• Windows 7 or higher (for Windows users), or macOS 10.12 and above (for Mac users)

• A free Grammarly account (you can also use the Premium features if you have a paid subscription)

• Works on both Windows and Mac devices, with additional support for the Firefox mobile app (though the desktop version is preferred for full functionality).

Where Grammarly Works in Firefox:

Once installed, the Grammarly Firefox extension works on many of the most popular web platforms, including:

• Gmail: Checks your emails for grammar and style issues before you hit send.

• Social Media: Works across platforms like Facebook, Twitter, and LinkedIn to help you write clear, error-free posts.

• Google Docs: Supports real-time writing assistance within Google Docs when you use it through Firefox.

• WordPress: For bloggers and content creators, Grammarly helps catch errors directly in WordPress’s editor.

Grammarly integrates with most text fields you’ll encounter on the web, so no matter where you’re writing, you can count on it to help you look polished and professional.

Step-by-Step — How to Add Grammarly to Firefox

Now, let’s look at how to add Grammarly to Firefox. Follow these simple steps on how to install Grammarly on Firefox.

Step 1: Click the three horizontal lines at the top-right and choose Add-ons and Themes.

Step 2: In the search bar, type “Grammarly” and press Enter. A new window will open to the right.

Step 3: You’ll see the Grammarly app on the top with its icon, go ahead and click it, and this will redirect you again.

Step 4: Hit the blue button that says Add to Firefox.

Step 5: A prompt will appear on the right side, just click Add to confirm.

Step 6: Then, after the process is done, click Activate Grammarly in the new window that opens.

Step 7: Finally, it will ask you to log in to your Grammarly account, and your extension will be added and automatically start working.

If at any point your Firefox extension not working, try refreshing the page or reinstalling, sometimes that clears a glitch.

Upgrade Your Grammarly Writing with Toolsmart Humanize AI

I’ve always found Grammarly to be a great tool for catching grammar mistakes, but sometimes it feels a bit too mechanical. Its suggestions are solid for fixing errors, but they can occasionally make your writing sound stiff or robotic. I’m sure many of you have felt the same frustration when your text ends up feeling more like a robot’s response than your own voice.

This is where Toolsmart’s Humanize AI Rewriter comes in. I’ve personally used it to give my writing that much-needed warmth and emotion. It's especially useful for emails, blogs, or job applications, where you want your tone to come across as more natural and less formal. Whether you're a content creator, student, or professional, this tool can help make your words sound more like you, not a machine. Coupled with its excellent AI, which can check your grammar within seconds.

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When I first discovered Toolsmart’s AI Rewriter, I was impressed by how it could refine my writing without making it sound like it was written by an algorithm. The beauty of this tool is that it’s undetectable, it helps you rewrite your content to sound human while avoiding any markers that scream “AI-generated.”

You won’t find any pop-up ads or distractions here. The tool is fast, fully web-based, and doesn’t require any downloads or installations, which is a major plus for me. It saves me time and doesn’t clutter up my computer with extra software.

Key Features of Toolsmart's Humanize AI

• Safe, Fast, No Ads, Fully Web-Based: There’s no need to worry about privacy or security; everything is processed directly in your browser. Plus, it's quick, without annoying ads popping up.

• No App Installation Needed: I really appreciate not having to download anything. Just open your browser and start improving your writing in minutes.

Toolsmart vs Grammarly — Complementary Strengths

To give you a clearer understanding of how Grammarly and Toolsmart’s Humanize AI stack up, here's a comparison of their key features. While both tools are incredibly useful, each has its unique strengths that cater to different aspects of writing. Below is a simple breakdown to help you see where each excels.

How to Use Toolsmart Humanize AI (Step-by-Step)

Now let's look at how to humanize your text and make it sound more natural in simple steps for totally free with no strings attached.

Step 1: Go to Toolsmart’s Humanize AI page to humanize your text.

Step 2: Copy the text checked by Grammarly and paste it into the Toolsmart input box.

Step 3: Choose your tone. Select from Friendly, Formal, or Persuasive and others depending on your choice and occasion. You also change the humanization level.

Step 4: Click “Humanize”. Watch as your text transforms into a more natural version.

Step 5: Your humanized/updated text will appear in the right side which you can copy and use.

FAQs

Q1: Is Grammarly for Firefox free to use?

Yes, the core Grammarly on Firefox extension is completely free, with optional Premium features.

Q2: Does Grammarly work on all websites in Firefox?

It supports most text fields, but proprietary editors or some forums may not be compatible.

Q3: Can Grammarly be used with Google Docs or Word Online on Firefox?

Absolutely, Grammarly integrates with major writing platforms right in your browser.

Q4: Why use Toolsmart Humanize AI with Grammarly?

Grammarly catches mistakes, while Toolsmart injects a human touch so your content feels authentic.

Q5: Where can I download Grammarly for Firefox?

Head to addons.mozilla.org and search “Grammarly for Firefox,” or go directly to Grammarly’s site to download Grammarly for Firefox.

Q6: What if I need a desktop app?

Grammarly offers a dedicated desktop app for Windows and Mac, but the browser version covers most needs without extra installs.

Enhance Your Writing with Grammarly and Toolsmart AI

By now, you know exactly how to add Grammarly to Firefox, from opening the Add-ons Manager to customizing your settings. Grammarly checks grammar, spelling, and tone across platforms like Gmail and Google Docs, helping to refine your writing. However, while it catches errors, the suggestions can sometimes sound stiff. That’s where Toolsmart Humanize AI steps in, offering natural-sounding rewrites to complement Grammarly. Together, they ensure your writing is both accurate and smooth.