AI Translator and Dictionary Online | Definer
Use AI translator & dictionary online with AI search to spell check sentences & learn new words
Manifest V3
- By:
- Lumetrium
- Rating:
- 4.66 (103) 0.03
- Version:
- 1.8.5 (Last updated: 2025-04-22)
- Version code:
- 5935115
- Creation date:
- 2021-06-14
- Permissions:
- contextMenus
- storage
- unlimitedStorage
- tabs
- declarativeNetRequest
- identity
- Host permissions:
- *://*/*
- Size:
- 6.55M
- Email:
- de*****@lumetrium.com
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Updated:
- 21 hours ago
Ranking
Other platforms
User reviews
Users praise the add-on for its effectiveness as a translator and dictionary, user-friendly design, and feature richness. However, multiple reviewers report significant CPU usage, occasional UI glitches on specific sites, and highlight concerns over the lack of official Firefox review and open-source transparency, which could affect trust and security. Overall, it is considered an excellent and essential tool despite these issues.
Pros
- Highly effective translator and dictionary functionality, described as 'the best' and 'works perfectly'.
- Easy to use with a great design, many users consider it a 'must-have'.
- Offers extensive vocabulary knowledge and customization options, surpassing competitors.
- Integrates multiple features into one extension, essentially merging several tools.
- Receives positive feedback for attention to detail and overall usability.
Cons
- High CPU usage even when idle, with increases around 60% after activating the add-on.
- Issues with pop-up bubbles not disappearing on certain websites like Instagram unless the page is reloaded.
- Lack of official review and supervision from Firefox team, raising potential security concerns.
- Google search functionality is reported as not working by some users.
- Not open source, which along with lack of Firefox endorsement, raises trust issues.
Recent reviews
by Firefox user 18547403, 2025-04-16
by AbdA, 2025-04-15
the best translator extension on firefox, thanks
by Firefox user 16899108, 2025-04-08
Extension safety
Risk impact
AI Translator and Dictionary Online | Definer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
AI Translator and Dictionary Online | Definer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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