Using Firefox's Edit and Resend feature
- Find the request you want to test in the Network panel.
- Right-click it and select Edit and Resend.
- In the new panel that appears, you can edit the request's method, url, query string, headers, and body.
- Press Send when you're happy with the values.
- How do I view HTTP requests in Firefox?
- How do I capture a post request in Firefox?
- How do I view HTTP response headers in Firefox?
- How do I get to about config in Firefox?
How do I view HTTP requests in Firefox?
Chrome, Firefox, and Safari
Windows: Hold down CTRL + SHIFT and press the letter i. You could also right-click the page and select Inspect from the menu.
How do I capture a post request in Firefox?
In network tab of Web Developer tools in firefox right click on the PUT, POST or any type of request, you will find "Use as Fetch in Console" option. Here we can seed the data we are passing. Save this answer.
How do I view HTTP response headers in Firefox?
In the Network tab, right-click the element you wish to inspect and select Save All As HAR. In this view, the HTTP headers are also visible in the Headers box on the right-hand side.
How do I get to about config in Firefox?
Opening about:config
Type about:config in the address bar and press Enter. A warning page may appear. Click Accept the Risk and Continue to go to the about:config page. Click Show All to view all preferences currently set in the profile or use the Search preference name box to filter the list.