Power Thesaurus
By: Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
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Features & Capabilities
User Growth & Download Statistics
- By:
- Power Thesaurus
- Daily users:
- 7,223 -127
- Rating:
- 4.77 (62)
- Version:
- 4.5.1 Last updated: 2026-04-23
- Version code:
- 6215825
- Creation date:
- 2016-04-15
- Risk:
- High risk impact Low risk likelihood
- Permissions:
- Host permissions:
- <all_urls>
- <all_urls>
- Content scripts matches:
- *.powerthesaurus.org
- <all_urls>
- *.powerthesaurus.org
- Size:
- 4.22MB
- Email:
- fi*****@powerthesaurus.org
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-18
- Compare stats and ranking:
- Power Thesaurus vs Thesaurus.com Synonym Finder
- Power Thesaurus vs Thesaurus v6
- Power Thesaurus vs Contextual Synonym Finder
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Permission Change History
2024-10-29: Version 3.0.15 → 4.2.3
Add Host permissions: <all_urls>
Add Permissions: scripting activeTab clipboardWrite
User Reviews
Overall, reviewers praise its simple, elegant design and practicality. It’s viewed as a handy tool for reading and writing, quickly providing definitions, synonyms, and antonyms by highlighting a word. The right-click thesaurus and the inclusion of rhyming words are frequently cited benefits that help editing and expression. The extension is described as smooth to use with few issues. A minority mention occasional display glitches or compatibility quirks with other extensions, but such reports are not widespread. Overall, strong positive sentiment with only minor caveats. Pros
- Simple and elegant, yet highly effective.
- Handy tool for reading, definitions, and synonyms; helps non-native speakers express themselves.
- Highlighting a word instantly reveals synonyms, antonyms, and definitions; saves time.
- Smooth operation that boosts writing/editing productivity.
- Right-click thesaurus feature with rhyming words adds value.
Cons
Recent reviews
by Mi*****, 2026-06-09
by Th*****, 2026-04-25
A superb and invaluable tool, I am very grateful to the Developer for this, Thank you.
by Fi*****, 2026-04-11
Is Power Thesaurus 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.
Power Thesaurus requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.
Power Thesaurus has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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