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?
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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[.]
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.
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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.