Code Injector Firefox

Reviews of Code Injector

By: Saba
List of user reviews and ratings for Code Injector

Total ratings

4.58 (Rating count: 74)
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Review summary

Users broadly praise Code Injector as a fast, reliable tool that can inject both CSS and JavaScript, earning it top marks as one of the best extensions for code injection. However, its effectiveness is limited by site security: restrictive Content Security Policies block functionality on many sites, and iframe injection is not supported. A few users also request domain-based profiles and more stable popup behavior, but the overall sentiment remains highly positive for everyday use.
Pros
  • Highly effective code injector that supports both CSS and JavaScript injections.
  • No-nonsense, easy-to-use tool that consistently works.
  • Widely regarded as one of the best injection extensions available.
Cons
  • Content Security Policy restrictions prevent operation on sites with strict CSP.
  • Cannot inject code into iframes.
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User Reviews

Recent rating average: 4.70
All time rating average: 4.58
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5 star
77% (60)
4 star
12% (9)
3 star
5% (4)
2 star
3% (2)
1 star
4% (3)
DateAuthorRatingComment
2026-03-06 Fi*****
2026-01-30 Fi*****
2025-08-03 us*****
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