Is Tab Session Manager safe?
Tab Session Manager bundles a hardcoded Google OAuth client_secret used to authenticate its Google Drive cloud-sync feature.
The extension stores tab sessions locally and optionally syncs them to Google Drive. To perform this sync, the background script includes a hardcoded OAuth client_id and client_secret that are sent to Google's token endpoint during the authorization code exchange. Because these credentials are embedded in the publicly distributed extension package, any party who downloads the XPI can extract them and impersonate the extension's OAuth application.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itsienori - no other listings under this identity, 1 shared hostname
sienori - no other listings under this identity, 1 shared hostname
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 1 hostname
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
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 7.4.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Store data in your browser
storage
Store an unlimited amount of data in your browser
unlimitedStorage
See the address and title of every tab you have open
tabs
Read and change your tab groups
tabGroups
Read and change cookies, including the ones that keep you signed in
cookies
Start, monitor and manage your downloads
downloads
Sign you in with your Google account
identity
Schedule its own background tasks
alarms
Where it sends data
Destinations our analysis observed Tab Session Manager 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.
- www.googleapis.comwidely used
Tab Session Manager sends data to www.googleapis.com. A widely used service: 48 other extensions we have analyzed send data here.