Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
10,935 users
simple-modify-headers
The extension rewrite the header (request or response) based on a rules table. It 's possible to add, modify or remove header fields for a choosen url pattern. It's possible to import/export the configuration
5,732 users
HTTP Header Spy
HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.
296 users
InlineDisposition Reloaded
InlineDisposition Reloaded changes the disposition type of "Content-Disposition" response headers from "attachment" and "file" to "inline"
811 users
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
11,046 users
Modify Headers DNR
Modify request and response headers through the DeclarativeNetRequest API
122 users
Request Interceptor
Intercept HTTP and HTTPS Requests. Add custom rules to modify request/response headers, block/redirect requests, modify query params. Example Usage: This extension can be used to block all ads having url (*/ad.x.com/*) by creating rules
781 users
Bootstrap - Responsive Helper
Show the Bootstrap grid class currently active (XS, SM, MD, LG, XL, XXL). Tested and work with the versions: 3, 4, 5 Not compatible versions: 4 Alpha 2
694 users
Header Editor Lite
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
47 users
http tracker
Monitoring the browser network for all tabs and pages in a single page. Track network traffic / http traffic sent from each tab, or page and the response headers for each request. Filter requests to capture, filter requests to view
1,128 users
Simple Modify Headers - Extended
Rewrites HTTP request/response headers based on a rules table.
204 users
Vuln Finder
Finds common low severity vulnerabilities in websites. This is done by analyzing cookies, server response headers, and local storage.
19 users
Allow SSO iFrames
Drops and changes HTTP response headers to allow sso login pages to be iframed.
10 users
Security Header Scanner
VaultOcean: Header Scanner is a lightweight browser extension that analyzes HTTP response headers to identify missing or misconfigured security headers. It helps developers, researchers, and site owners quickly detect vulnerabilities and strengthen t
16 users
Don't "Accept" image/webp
This extension removes image/webp and/or image/avif from the list of formats Firefox tells sites that it accepts. That discourages many servers from replacing JPEG and PNG images with WebP/AVIF. (But some may send them anyway; they aren't blocked.)
22,519 users
ResponsiveHelper
A Firefox add-on to show the screen width and height when resizing the window
28 users
Rewrite Content Disposition
This add-on changes the disposition of Content-Disposition response headers from attachment to inline. If an attachment is detected in the response header, it will be rewritten to 'inline' so no popup will appear.
58 users
InlineDisposition (WebExtensions)
InlineDisposition (WebExtensions) changes the disposition of Content-Disposition response headers from attachment to inline.
64 users
ChartFox Browser Extension
Enable fully-integrated chart viewing within the ChartFox web app
2,230 users
ETag Stoppa
Prevents Firefox from storing entity tags by removing ETag response headers unconditionally and without exceptions. Minimalism at its fullest.
135 users
