Is Viewport Resizer: Ultimate Device Emulator & Website Testing Tool safe?
This extension emulates different device viewports to help test and present website layouts.
It lets users preview digital experiences across device mockups, display resolutions, and a zoomable workspace. It includes tools such as touch fingerprint simulation, user-agent emulation, breakpoint guides, rulers, grids, and a presentation mode called Coffee Mode. The description notes that these simulations are a first-level approximation and do not replace physical device testing.
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 2.0.4. 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
<all_urls>
Act on the current tab, but only after you click the extension
activeTab
Run its own code inside the pages you visit
scripting
Block and redirect the requests your browser makes
declarativeNetRequest
Store data in your browser
storage