Is it a Virus?
NO - Safe
Installed from official Chrome Web Store with publisher 'Tampermonkey'
Warning
Malicious scripts can pose risks
Scripts injected by Tampermonkey run with page permissions. Use trusted scripts and review sources.
Can I Disable?
YES
Disable or remove from chrome://extensions when not needed
What is tampermonkey-ext?
Tampermonkey-ext is a browser extension that lets you install, manage, and run user scripts across websites. It injects small JavaScript programs into pages to customize appearance, automate tasks, and add features. It supports syncing scripts and settings across devices through your account.
Tampermonkey-ext uses content scripts and a lightweight background page to load user scripts, exposes GM_* APIs, and executes scripts in a controlled environment. It injects code into pages after load, while isolating permissions to minimize page interference and preserve security.
Quick Fact: Tampermonkey emerged as a lightweight, scalable user script manager and supports cross-site scripting with sandboxed execution.
Types of Processes Involved
- UI Script Runner: Extension UI interactions and script management
- Content Script Injector: Injects user scripts into web pages
- Storage Manager: Stores user scripts and settings in browser storage
- Update Monitor: Checks for script updates and extension updates
- Sandbox Helper: Runs userscripts in isolated contexts when possible
Is tampermonkey-ext Safe?
Yes, tampermonkey-ext is safe when downloaded from official sources (Chrome Web Store) and kept updated.
Is tampermonkey-ext a Virus or Malware?
The real tampermonkey-ext is NOT a virus. Be cautious of counterfeit extensions with similar names.
How to Tell if tampermonkey-ext is Legitimate or Malware
- File Location:: At: C:\Users\Alex\AppData\Local\Google\Chrome\User Data\Default\Extensions\dhdgffkkebhnaijkppndpkfkoomjbgbk\1.23.0\manifest.json
- Publisher Verification:: In Chrome: chrome://extensions, confirm Publisher is 'Tampermonkey' and the extension ID matches the store entry.
- Digital Signature / Integrity:: Check the manifest.json and ensure it contains expected scripts and GM_* API usage; verify via the store page.
- Resource Usage:: Normal extension activity uses modest memory; abnormal CPU at idle is suspicious.
Red Flags: If you see unusual extension IDs, mislabeling as 'Tampermonkey', or a different publisher, remove it and reinstall from the Chrome Web Store.
Why Is tampermonkey-ext Running on My PC?
Tampermonkey-ext runs to manage and execute user scripts on web pages, inject code, and support script updates while you browse.
Reasons it's running:
- Active Browser Sessions: You have the browser open and Tampermonkey is enabling user scripts for pages loaded.
- Background Script Activity: Tampermonkey may run background tasks to fetch updates or manage script sync.
- Automatic Script Updates: Scripts may check for updates automatically, triggering extension activity.
- Content Script Injection: On site load, Tampermonkey injects scripts into the DOM to modify behavior.
- Startup/Launcher: Chrome loads extensions at startup or when a new tab opens, causing initial activity.
Can I Disable or Remove tampermonkey-ext?
Yes, you can disable or remove tampermonkey-ext. It’s safe to disable when not needed, and you can uninstall from Chrome Extensions if you no longer use it.
How to Stop tampermonkey-ext
- Disable in Chrome: Open chrome://extensions, toggle the Tampermonkey extension off.
- Remove from Chrome: Click Remove on the Tampermonkey extension card.
- Manage Script Sync: In Tampermonkey dashboard, disable or remove suspicious scripts.
- Check Startup: Disable any startup-related options in Chrome settings or extensions.
- Update Only from Store: Ensure updates come from the official Chrome Web Store.
How to Uninstall Tampermonkey
- ✔ Chrome Settings > Extensions > Tampermonkey > Remove
- ✔ Alternatively, remove via chrome://extensions
- ✔ Clear extension data in Chrome settings if prompted
Common Problems: High CPU or Memory Usage
If tampermonkey-ext is causing high resource usage, identify scripts and manage options to minimize impact.
Common Causes & Solutions
- Complex or poorly written scripts: Disable or review scripts in the Tampermonkey dashboard; optimize code.
- Many scripts running on a site: Disable unnecessary scripts for site or group scripts by site.
- Frequent network checks: Limit automatic updates or switch to manual update checks.
- High memory due to large script storage: Archive or remove unused scripts; consider cleaning storage.
- Incompatible scripts with page changes: Disable script on problematic sites; check compatibility.
- Browser extensions conflict: Disable other extensions that may interfere with Tampermonkey.
Quick Fixes:
1. Quick Fixes:
2. 1. Open Tampermonkey dashboard and disable heavy scripts
3. Clear browser cache and storage for Tampermonkey
4. Update Tampermonkey to the latest version
5. Disable unnecessary site-wide scripts
6. Restart the browser to apply changes
Frequently Asked Questions
Is tampermonkey-ext a virus?
No, the legitimate tampermonkey-ext from the Chrome Web Store is not a virus. Verify the extension ID and publisher on chrome://extensions.
What is Tampermonkey used for?
Tampermonkey manages and runs user scripts to customize websites, automate tasks, and enhance browser features.
Can Tampermonkey read my data?
Scripts run with the page's permissions; Tampermonkey can access data exposed to the page, but you control which scripts run.
How do I disable or remove Tampermonkey?
Disable in chrome://extensions or Remove from the Chrome Web Store page; you can also clear data from within the Tampermonkey dashboard.
Will Tampermonkey slow down my browser?
Not inherently. Poorly written scripts or many scripts on resource-heavy sites can increase CPU/memory usage.
How do I update Tampermonkey?
Keep Tampermonkey updated via the Chrome Web Store. Check chrome://extensions for updates and enable auto-update.