Quillbot

Name: Quillbot
Rating: 3.0889 (45 reviews)
Author: Quillbot

By: Quillbot

Your smart thesaurus to sophisticatedly restructure and reword sentences.

This add-on was removed from Firefox Add-ons Store on 2026-02-17

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Features & Capabilities

QuillBot is a powerful Chrome extension designed to help writers, students, and professionals enhance their sentences with creative restructuring and intelligent rewording. Utilizing a smart thesaurus, QuillBot allows users to input any sentence and receive sophisticated suggestions that maintain the original meaning while improving clarity and style.

Users can easily edit the output by clicking on highlighted words to access additional synonym options via an integrated thesaurus pop-up. This feature empowers users to customize their sentences precisely to their liking, making the QuillBot extension an essential tool for anyone seeking to refine and elevate their writing with ease and flexibility.

User Growth & Download Statistics

Add-on Writing Education

By:

Daily users:

Rating:

Version:

0.1.221resigned1 Last updated: 2024-04-25

Version code:

5730261

Creation date:

2018-02-12

Risk:

Permissions:

contextMenus

Size:

25.47KB

Email:

sa*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-02-17

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Quillbot

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/quillbot/

Email:

sa*****@gmail.com

Website:

http://quillbot.com

User Reviews

The dominant, recurring problem is that Firefox cannot open the Quillbot extension due to an embedding/security restriction, rendering the add-on unusable on Firefox. Several reviews note the same error, while Chrome/Edge seem unaffected. Additional concerns include unhelpful support pages, no official Firefox extension yet (with scam warnings), and overall inconsistency in Firefox versus other browsers. A minority still appreciates the underlying paraphrasing/features when accessible, but the Firefox bug prevents practical use.

Pros

When functional, the tool provides strong paraphrasing and writing features (paraphrase, plus options like summarize, translate, citations, plagiarism checker, and grammar checker).
The premium option is described as not expensive, offering value for paid features.
Overall potential usefulness when working (users see value in the service despite the Firefox issues).

Cons

Cannot open or load the extension in Firefox due to a Firefox security/embedding restriction (embed/embed-page issue).
Extension does not work in Firefox because the page cannot be displayed, with the common error about embedded content.
Support resources are unhelpful or mostly promotional (advertising on the support page, lack of concrete help).
There is no official Firefox extension available yet, with warnings about potential scams; users are advised to be cautious.
Functionality works in other browsers (Chrome/Edge) but not in Firefox, indicating cross-browser incompatibility or Firefox-specific blocking.

Recent reviews

It works really well, but I can't even open the extension. It says: " Firefox Can’t Open This Page To protect your security, quillbot.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window."

by Uk*****, 2026-02-12

You cannot even open the extension: To protect your security, quillbot.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

by Im*****, 2026-01-17

Hier hetzelfde probleem. Ik installeerde Quillbot op aanraden van de 'Language Tool' die stopt met de gratis ondersteuning. Als ik op Quillbot in de Firefox werkbalk klik krijg ik ook: "Firefox kan deze pagina niet openen Om uw veiligheid te beschermen, staat quillbot.com niet toe dat Firefox de pagina toont als een andere website deze heeft ingebed. Om deze pagina te bekijken moet u deze openen in een nieuw venster. Meer info… " Als ik naar de ondersteuningspagina van de extensie ga (ik heb een Quillbot-account en ben aangemeld) krijg ik alleen maar reclame en geen ondersteuning hoe dit op te lossen is. Notitie: in andere browsers Google Chrome, Edge krijg ik deze foutmelding niet. Dus: Quillbot, repareer deze bug AUB!

by Ch*****, 2026-01-16

View all user reviews ›

Is Quillbot Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Quillbot does not require any sensitive permissions.

Risk impact analysis details

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Quillbot may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.