Emulates remote frameworks (e.g. jQuery, Bootstrap, AngularJS) and delivers them as local resource. Prevents unnecessary 3rd party requests to Google, StackPath, MaxCDN and more. Prepared rules for uBlock Origin/uMatrix.

LocalCDN: Privacy-Focused CDN Emulator for Firefox
LocalCDN is a Firefox extension designed to improve privacy and internet speed by emulating CDN to locally serve web resources. It includes big frameworks like Bootstrap, React, Vue and more, thereby preventing unnecessary third-party requests. It also offers sync extension settings with Firefox Sync or your own server and prepares rules for ad-blockers like uBlock Origin and AdGuard, among other features.
Add-on stats
Manifest V2
By: nobody
Rating: 4.77
(230)
Weekly download count: 464
Firefox on Android: Yes
Permissions:
- *://*/*
- privacy
- storage
- webNavigation
- webRequest
- webRequestBlocking
Size: 22.32M
URLs: Website ,Privacy policy
Full description: See detailed description
Ranking
# 546 ▼ 2
User reviews
Pros
- Offers more CDN coverage than Decentraleyes
- Provides additional features compared to similar add-ons
- Helps block unwanted garbage requests from CDNs
Cons
- Performance issues, such as slower loading times compared to other extensions
- Inability to modify the list of CDNs and frameworks easily
- Issues with character rendering in different languages
Most mentioned
- Slower performance compared to alternatives
- More features and better CDN coverage than Decentraleyes
- Challenges in modifying CDN lists
User reviews
by Firefox user 18463091, 2025-02-21
by Craig, 2025-01-30
by tagster, 2024-12-30
Add-on safety
Risk impact
LocalCDN requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of LocalCDN. Use it at your own risk.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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