JSLibCache

JSLibCache

A more dynamic version of Decentraleyes / LocalCDN where the Javascript libraries (and CSS / fonts) are downloaded once from the CDN and then stored locally forever.

JSLibCache promo image
What is JSLibCache?

JSLibCache is a WebExtension for Firefox that enhances privacy by serving requests to popular CDNs from local cache/storage. It dynamically fetches JavaScript libraries, CSS files, and Fonts from CDNs and stores them locally for subsequent requests.

Merlin
Stats
Stats date:
Users: 97 ▲ 5
Rating: 4.43 (14)
Version: 0.0.20 (Last updated: 2021-10-24)
Creation date: 2020-06-04
Weekly download count: 12
Firefox on Android: No
Manifest version: 2
Permissions:
  • *://*/*
  • storage
  • activeTab
  • unlimitedStorage
  • webRequest
  • webRequestBlocking
  • webNavigation
Size: 6.02M
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge
Merlin
Summary

JSLibCache

A WebExtension for Firefox / Chrome that enhances privacy by serving requests to popular CDNs from local cache/storage. It is similar to Decentraleyes / LocalCDN. It serves Javascript libraries, CSS files and Fonts that a website tries to load from popular CDNs like ajax.googleapis.com.

Difference between JSLibCache and Decentraleyes / LocalCDN JSLibCache fetches resources from CDNs dynamically, once. So if a website you visit requests https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js and that lib is not yet in the local cache, it is fetched from the CDN and put into local storage for subsequent requests.

User reviews
It is broken and abandoned. Can't disable for specific sites to unbreak it either.

It is broken and abandoned. Can't disable for specific sites to unbreak it either.
View all user reviews
Safety
Risk impact

JSLibCache 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 JSLibCache if you trust the publisher.

Risk likelihood

JSLibCache has earned a fairly good reputation and likely can be trusted.

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Screenshots