browser for power-users

Applications
1

I am looking for a browser for power usage, with below conditions.

  1. support crx entensions
  2. abilitiy to turn off all security related restrictions and web security, e.x: CORS, unsafe-origin, HSTS, etc.
  3. ability to edit all HTTP headers including Host and User-Agent from the client-side JS
  4. ability to treat all unsafe-origins as safe-origin
  5. ability to bypass all SSL related errors during handshake and treat all insecure HTTPS sites as secure
  6. support for unlimited browsing history (chromium is limited to 3 months)

nice to have,

  1. pass challenges.cloudflare.com
  2. dev-tools is optional
  3. seperate process per tab so single tab crash won’t take the whole browser with it
  4. everything else is optional including browser-sync and source-code
  5. WebTCP support
2

ChatGPT 5.1 Says:

What you’re asking for is essentially a custom research/browser toolkit, not a configuration option. No mainstream browser can do this out of the box, and several of your requirements (JS control of headers, disabling origin and TLS protections) are fundamentally at odds with how modern browsers are designed to protect end users. Use a normal Chromium browser plus a local proxy/automation stack, or maintain your own fork if you absolutely need that level of control.