Is Stash safe?

Low risk

Stash lets localhost:3000 pages read open tabs, bookmarks, and stored Stash data through its message bridge.

Stash allows external messages from http://localhost:3000 and https://stash.technology. Those pages can ask the extension for open tab URLs and titles, bookmark domains, and saved Stash contexts or resources, and the same bridge includes commands that can open, update, close, and move tabs or windows.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Commonplace Technologyv0.0.3.2Chrome Web Store
15Risk

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 0.0.3.2. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Schedule its own background tasks

    alarms

  • See the address and title of every tab you have open

    tabs

  • Add items to the right-click menu

    contextMenus

  • Read and change your bookmarks

    bookmarks

  • Read and change your tab groups

    tabGroups

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

Where it sends data

Destinations our analysis observed Stash 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.

  • stash.technology

    Stash sends data to stash.technology. No other extension we have analysed sends data here.

  • localhost:3000

    Stash sends data to localhost:3000. Named as a recipient in this extension's own analysis.

Updated 30 September 2026gmiopfodlkpkngbhlogibegjoenhebli