Is Join safe?
Join dispatches remote-control commands received via push notification through eval() with no signature check.
Join lets you control this device from your other devices (opening URLs, taking screenshots, reading the clipboard, sending SMS, and more) by listening for push messages from Google's GCM/FCM service and its own backend, joinjoaomgcd.appspot.com. When a push message arrives, the extension resolves the requested command class by name using eval() and runs it immediately, without verifying any signature on the message itself — it relies only on the push message having been delivered to this device's registration token.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itKITXOO - 1 other listing from the same operator, none carrying a finding
KITXOO - 1 other listing from the same operator, none carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
1 other listing published from this account, 3k+ users between them, none of them carrying a finding.
Shared hosts - 4 hostnames
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 1.9.3. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on joinjoaomgcd.appspot.com
https://joinjoaomgcd.appspot.com/
Read and change your data on localhost:8080
http://localhost:8080/
Read and change your data on accounts.google.com
https://accounts.google.com/o/oauth2/v2/auth/
Sign you in with your Google account
identity
See the email address of your Google account
identity.email
Keep running in the background while your browser is open
background
Receive push messages from its developer's servers
gcm
Store an unlimited amount of data in your browser
unlimitedStorage
Show you desktop notifications
notifications
See the address and title of every tab you have open
tabs
Read whatever you have copied to your clipboard
clipboardRead
Write to your clipboard
clipboardWrite
Add items to the right-click menu
contextMenus
Read your physical location
geolocation
Speak text aloud
tts
Run hidden pages in the background
offscreen
Where it sends data
Destinations our analysis observed Join 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.
- joinjoaomgcd.appspot.com
Join sends data to joinjoaomgcd.appspot.com. No other extension we have analysed sends data here.