Is Change Timezone (Time Shift) safe?
Change Timezone (Time Shift) accepts timezone-override commands from any page, with no check on who sent them.
A content script running on webbrowsertools.com/timezone* listens for postMessage commands and applies whatever timezone value it receives without checking the sender's origin, so any web page that can hold a reference to a window on that site can silently change the spoofed timezone the extension applies everywhere. Because the extension injects its active configuration into the main JavaScript context of every site you visit (via *://*/* host permissions), the resulting timezone override then affects Date and Intl behavior on all subsequently loaded pages. The same injected configuration is also left readable as a global variable on every page, so any script running there can detect the extension and see its exact anti-fingerprinting settings.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itYubi - 15 other listings from the same operator, 1 of them carrying a finding
Yubi - 15 other listings from the same operator, 1 of them carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
15 other listings published from this account, 481k+ users between them. 1 of them carries a finding.
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 0.1.9. 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 every site you visit
*://*/*
Store data in your browser
storage
Run its own code inside the pages you visit
scripting
Add items to the right-click menu
contextMenus
See every page you navigate to, as you navigate to it
webNavigation