Is Thesaurus online safe?
Thesaurus online sends text you select on any webpage to its own API when you look up synonyms.
When you highlight text and choose "Get Synonyms" from the right-click menu, the extension stores the selected text locally, opens a popup, and sends the word to the vendor's own thesaurus API to fetch results. This works on any page since the extension isn't limited to specific sites, but the request only fires when you actively trigger the lookup.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 2.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Act on the current tab, but only after you click the extension
activeTab
Add items to the right-click menu
contextMenus
Store data in your browser
storage
Where it sends data
Destinations our analysis observed Thesaurus online contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- thesaurusonline.pro
Thesaurus online sends data to thesaurusonline.pro. No other extension we have analyzed sends data here.