Request Interceptor

Intercept HTTP and HTTPS Requests. Add custom rules to modify request/response headers, block/redirect requests, modify query params. Example Usage: This extension can be used to block all ads having url (*/ad.x.com/*) by creating rules

Request Interceptor - Modify & Control Web Requests Add-on

'Request Interceptor' is a powerful Firefox add-on that gives users control over their browsing experience by intercepting HTTP and HTTPS web requests. It not only allows users to redirect or block unnecessary requests but also to throttle the responses of static resources. Further, it offers customization options to add, modify, or delete request/response headers, along with the possibility to manipulate query parameters. An excellent tool for a customized web interaction.
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View on Firefox Browser Add-ons

Add-on stats

Manifest V2
Daily users: 854
1
Rating: 3.87
(15)
Version: 1.5.0 (Last updated: 2023-10-20)
Version code: 5639536
Creation date: 2019-07-29
Weekly download count: 56
Firefox on Android: No
Permissions:
  • tabs
  • webRequest
  • webRequestBlocking
  • http://*/*
  • https://*/*
  • storage
  • unlimitedStorage
Size: 1.98M
Full description: See detailed description

Ranking

# 3,462
Other rankings
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Other platforms

Request Interceptor (v1.6.0)
10,000 4.14 (58)
Not available on Android
Request Interceptor (v1.2.0)
1,476 4.80 (4)

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
  • Easy to use for managing requests and creating controlled data scenarios between user and server.
  • Useful for testing feature flag behavior in web applications.
  • Provides a way to modify requests easily when it works as expected.
Cons
  • Lack of a tutorial or clear instructions for new users.
  • Interface could be clearer on saving and enabling features.
  • Does not work as expected on locally hosted web apps.
  • Settings tab opens automatically with each Firefox launch after the last update.
Most mentioned
  • Need for a tutorial or clearer instruction.
  • Issues with the interface clarity and usability.
  • Problems with functionality on localhost.
  • Request modification capabilities are limited.
User reviews
by 远离中共邪教快退出党团队, 2025-02-26
A tutorial would be helpful. I can't get it to add the desired query.
by Firefox user 12604295, 2023-12-22
View all user reviews

Add-on safety

Risk impact

Request Interceptor 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 Request Interceptor. 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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