Tampermonkey BETA
#88 of 19,280 by installs on Edge · #4 of 1,750 in Developer-Tools
First seen by this census 09/02/2026 — the store does not publish a creation date
Last updated 04/10/2026
Tracked since 09/02/2026
Compare with another extension
Category: Developer-Tools
Description
Change the web at will with userscripts
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Growth
Change in installs, scaled to each window from the real gap between crawls. This store refreshes its install counts only occasionally, so these figures usually read 0 even for a listing that is growing - the weekly change in ratings under Rating above is the better signal here. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | 0 | 0.0% | 0 | 1.1 days |
| week | 0 | 0.0% | 0 | 7.5 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Installs
Ratings
Average rating
Permissions
Access level: Extensive — Reaches every website you visit, and holds a powerful capability as well.
- Reads and changes your data on all websites
- Read and change your cookies, which can include login sessions
- Run user scripts - code that did not ship with the extension - on the pages you visit
- See the web requests your browser makes, including URLs you visit
- See and block or modify web requests before they complete
Ad blockers, password managers and VPNs need this kind of access to do their job. This describes what the extension can reach, not how it behaves.
Manifest V3
Reads and changes your data on all websites ⚠
- alarms — Schedule its code to run at a later time
- clipboardWrite — Write to your clipboard
- contextMenus — Add items to your right-click menu
- cookies ⚠ — Read and change your cookies, which can include login sessions
- declarativeNetRequestWithHostAccess — Block or modify web requests, with access to the content of matched sites
- idle — Detect when your computer is idle or locked
- notifications — Show you desktop notifications
- offscreen — Run a hidden page to do background work, such as playing audio or reading documents
- scripting — Run scripts on web pages you visit
- storage — Save its own settings and data locally
- tabs — See your open tabs and the pages you're on
- unlimitedStorage — Save an unlimited amount of its own data locally
- userScripts ⚠ — Run user scripts - code that did not ship with the extension - on the pages you visit
- webNavigation — See what pages you navigate to and when
- webRequest ⚠ — See the web requests your browser makes, including URLs you visit
- webRequestBlocking ⚠ — See and block or modify web requests before they complete
Optional permissions
- downloads — Start downloads and see your download history