cross-posted from: https://lemmy.zip/post/42291691

Good day! I'm looking for is a way of creating rules to intercept, modify, drop, and replace HTTP requests and responses, hopefully even with regex(or similar) capabilities.

The best extension I've found that seems to suit those needs is Requestly. However, it seems like they have some shady practices of bought/bot reviews, like here on AlternativeTo.net, where you can see the review are made by accounts that are created the same day of the review, and never used since. The same pattern can be found on ProductHunt.
Is there perhaps an audit of their Github repo somewhere?

I've also looked at apps like mitmproxy, but I was hoping for a solution that is in-browser.

I know that Firefox and Chromium has the built-in dev tools for this, but this is only applied with the dev tools actively open; I'm looking for a more persistent solution.

Please let me know if this is not the place to ask, and if there are other places I should try and look instead/also.