CORS Everywhere
A firefox addon allowing the user to enable CORS everywhere by altering http responses.
Report issues to the repository, with enough information to reproduce the problem:
https://github.com/spenibus/cors-everywhere-firefox-addon/issues
CORS Everywhere - A Firefox Add-on to Enable CORS
'CORS Everywhere' is a Firefox add-on designed for developers, altering HTTP responses to enable Cross-Origin Resource Sharing (CORS) in all domains. It wisely manipulates HTTP requests to make browsers perceive affirmative server responses, keeping rules for valid HTTP requests intact. Note that this add-on only alters requests and does not disable security features within Firefox. It comes with a simple customizable toggle button to enable or disable the feature.
Add-on stats
Manifest V2
Weekly download count: 975
Firefox on Android: No
Permissions:
- webRequest
- webRequestBlocking
- storage
- <all_urls>
Size: 18.93K
URLs: Website
Full description: See detailed description
Ranking
# 458 ▲ 1
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
User reviews
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spammy, or outdated. Pros
- Convenient and easy to use with just a click
- Effective in solving CORS issues without configuration
- A must-have for developers in certain projects
- Reliable for development purposes
Cons
- Inconsistent performance across various user experiences
- Some users reported that it doesn't work at all
- Comparison to other extensions indicating better performance
Most mentioned
- Ease of use
- Effectiveness in resolving CORS issues
- Inconsistent functionality
User reviews
by tipar, 2025-03-02
by Muhul, 2025-02-23
by 退出中共邪教党团队避疫, 2025-02-10
Add-on safety
Risk impact
CORS Everywhere requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of CORS Everywhere. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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