simple-modify-headers
Simple Modify headers
The extension rewrite the headers based on a rules table.
It's possible to:
add , modify or delete header field for HTTP(S) request or response
export the configuration in a file (json format)
import the configuration from a file
choose urls on which the modifications applies
In order to work, the following extension permissions are needed :
storage : needed to store the configuration
activeTab, tabs : needed to show the configuration screen in the browser tab.
webRequest,webRequestBlocking,<all_urls> : needed to modify the headers
More information on https://github.com/didierfred/SimpleModifyHeaders
The code is opensource under Mozilla Public License 2.0
Latest reviews
Works like a charme. We are using this extension for switching dev mode for some domains. Super easy. And no ads! Thanks!
April 2025: doesn't seem to work anymore... I can't get any Header to be added or modified. Too bad
Set it up and forget about it. No ads!
add resource type feature also
it works! and free. thanks!
The results were precisely what I needed for my testing purposes.
It works and is simple! I had a problem with an old web app that doesn't work when the browser is in a language other than Spanish, but I didn't know it. I used ChatGPT, and with it, I figured it out. GPT suggested I install an extension to modify the Accept-Language in request headers, and this is the one I used. Now, the web app works as expected.
It works, OSS rules!
Perfect and open source !
good
This now breaks YouTube.
This now breaks YouTube.
Many YouTube videos show "An error occurred. Please try again later. (Playback ID: ___)", then i have to refresh the page again for the video to play. This is solved by disabling the last 4 YT headers. Please include the ability to block certain sites.
It works as described. Simple and clear. Open source. What's missing is a more functional popup with the ability to switch headers.
It works as described. Simple and clear. Open source. What's missing is a more functional popup with the ability to switch headers.
Me ha funcionado bastante bien, el reemplazo ideal para quienes usabamos ModHeader antes de su limitación en funcionalidades.
Don't adding a header on redirect requests.
Don't adding a header on redirect requests.
Convenient and functional extension. My only wish: Enable the ability to have multiple data (rules) profiles, at least so that the old data is not erased during import.
Convenient and functional extension. My only wish: Enable the ability to have multiple data (rules) profiles, at least so that the old data is not erased during import.
works, wish it had a regex/js way of writing values based on URL or other variables
works, wish it had a regex/js way of writing values based on URL or other variables
very useful
very useful
Tried the others, this is the best header rewrite tool there is. Very impressed.
Tried the others, this is the best header rewrite tool there is. Very impressed.
