Request RegEx Filter

Request RegEx Filter

This Add-on will filter all HTTP requests (including requests for javascript files, images etc) based on the list of regular expressions the user provides. The addon works off of a Deny-list configured via the Options/Settings page for the Addon

What is Request RegEx Filter?
Request RegEx Filter is a Firefox add-on that filters all HTTP requests using a denylist of regular expressions. Users can configure the denylist via the Options/Settings page of the add-on.
Merlin
Stats
By: Henry Lu
Users: 11 ▼ -1
Rating: 5.00 (4)
Version: 1.1resigned1 (Last updated: 2024-04-25)
Creation date: 2017-09-19
Weekly download count: 1
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • webRequest
  • <all_urls>
  • storage
  • webRequestBlocking
Size: 10.40K
URLs: Website
Stats date:

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Summary

To configure this Add-on, Open the Add-ons/Extensions page of your browser or type "about:addons" in the address bar in Firefox.

Click on "Options" for the Request RegEx Filter add-on.

Then you can add or remove from the list of Regular Expressions that will denylist the http request.

For more details on how to write a regular expression, here are some resources:

For Example: Add the following regular expression to the denylist
  • http(s)?:\/\/ads[.]
and it will block all requests to websites that start with "ads." on http or https. this means any requests to get javascript or other content from http://ads.example.com would be blocked.

This regex is purely for demonstration purposes. The above Regular Expression has the limitation that any website starting with "ads." would be blocked. So if you legitimately want to be visiting a site with a domain name prefixed with "ads." you would avoid using this regex.

User reviews
simple, straight forwards and it just works

by Rico Liebscher, 2020-05-24

View all user reviews
Safety
Risk impact

Request RegEx Filter 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 Request RegEx Filter if you trust the publisher.

Risk likelihood

Request RegEx Filter is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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