Userscript support for browsers, open source.

Violentmonkey promo image
What is Violentmonkey?

Violentmonkey is a versatile add-on designed for Firefox. It extends userscript support to browsers with WebExtensions support and readily accommodates scripts popular with Greasemonkey and Tampermonkey. Feature-packed, it offers automatic script updates, ensures scripts are executed in their order on the list, supports GM functions, allows import /export to a zip file and syncs to Dropbox and OneDrive. It's open-source and offers a frequently updated beta version.

By: Gerald
Version: 2.18.0 (Last updated: 2024-01-17)
Creation date: 2017-03-21
Weekly download count: 3,006
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • tabs
  • <all_urls>
  • webRequest
  • webRequestBlocking
  • notifications
  • storage
  • unlimitedStorage
  • clipboardWrite
  • contextMenus
  • cookies
Size: 581.05K
Stats date:

Other platforms

Violentmonkey (v2.18.0)
4.64 (577) 964,158
Violentmonkey (v2.18.0)
4.70 (79) 672,151
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Violentmonkey provides userscripts support for browsers. It works on browsers with WebExtensions support. It supports most scripts for Greasemonkey and Tampermonkey. Features:

  • Update automatically according to the meta data.
  • Scripts will be executed in order as shown in the list.
  • GM functions are supported.
  • Support import from and export to a zip file.
  • Sync to Dropbox and OneDrive!
  • Open source!
  • A frequently updated beta version (click the xpi file inside Assets and confirm).
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Open source
  • Compatibility with userscripts
  • Easy to use/import scripts
  • Lightweight and fast
  • Actively maintained
  • Slightly less compatible than Tampermonkey
  • Greasemonkey hasn't been updated in years
Most mentioned
  • Open source
  • Compatibility
  • Maintained/up to date
  • Switch from other userscript managers
  • Easy to use
View all user reviews
Risk impact

Violentmonkey is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Violentmonkey if you trust the publisher.

Risk likelihood

Violentmonkey is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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