User JavaScript and CSS
User JavaScript and CSS on any website
User JavaScript and CSS Extension
User JavaScript and CSS is a Chrome extension that allows users to inject their own JavaScript and CSS rules to any website. It features instant execution, custom libs include, and URL masking for use on multiple pages. With User JavaScript and CSS, users can customize their browsing experience by applying custom scripts and styles to websites.
Extension stats
Risk impact: High risk impact 
Risk likelihood:
Manifest version: 3
Permissions:
- storage
- tabs
- unlimitedStorage
- userScripts
- scripting
Host permissions:
- http://*/
- https://*/
Size: 1.70M
Email: sq*****@yandex.ru
Ranking
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Extension summary
Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page.
Features:
- Instant execution
- Custom libs include
- URL masking allows use one script or CSS on many pages
Documentation: https://tenrabbits.github.io/user-js-css-docs/
Change log: Version 3.0.6 beta
try catchwrapper removed- CSS injection improved
- added button to save converted URL
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Simple and user-friendly interface
- Allows customization and toggling of rules easily
- Works well for various use cases, similar to features in VS Code
- High-quality performance in injecting JS and CSS
- Lightweight and functional compared to alternatives
Cons
- Issues with caching old code or settings
- Limited payment options for donations
- Request for more features, like real-time editing and disabling code completion
- Problems after updates causing functionality loss
- Interface can feel cramped due to large sidebar
Most mentioned
- Works well and is easy to use
- Customization options are valuable
- Caching issues need to be resolved
- Desire for additional features and settings
- User interface feedback regarding size and usability
User reviews
by 
Владимир, 2024-12-20
Владимир, 2024-12-20 by 
Milan Machain, 2024-12-11
Milan Machain, 2024-12-11特徴は他の人が書いている通りシンプルで使いやすく素晴らしい。全く知識がなくても、Copilotに質問して生成したコードをほぼべた張りするだけで思った通りの機能を実現できた。
欠点は寄付したくなってもよく分からないサイトに登録するか、またはビットコイン送金しか手段が無いこと。Paypalとかあれば良かったのだがちょっとハードルが高い。
by 
martra_art :, 2024-12-09
martra_art :, 2024-12-09Extension safety
Risk impact
User JavaScript and CSS requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
User JavaScript and CSS has earned a fairly good reputation and likely can be trusted.
Upgrade to see risk analysis details
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