Tampermonkey is a userscript manager extension for Android, Chrome, Chromium, Edge, Firefox, Opera, Safari, and other similar web browsers, written by Jan Biniok. However, it is also available as a standalone, userscript enabled web browser for Android mobile devices.

Does Tampermonkey work on phone?

Tampermonkey is a Greasemonkey compatible script manager. In order to make your Userscripts run, Tampermonkey is wrapped by a small Android app that is something like a browser. Please note that Tampermonkey for Android is still in beta state and that it doesn’t have the feature set of a full-blown browser.

Is Tampermonkey illegal?

Controversy. On January 6, 2019, Opera banned the Tampermonkey extension from being installed through the Chrome Web Store, claiming it had been identified as malicious.