Requestman Firefox

Download Requestman

By: 0xE31 Add-on
Download Requestman (current and past versions) for Firefox
xHeader
Modify request and response headers. No ads, no malware.
Latest Version: 1.0.1 Updated: 3 months ago

Ready to install?

Requestman is available to install from Firefox Add-ons Store and for download from this page.
View source code
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Available versions

You can find the current and older versions of Requestman here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.
Upgrade to download older versions
VersionDownloadSizeDownload countTimestamp
1.0.1XPI · ZIP · Source code650.47KB02026-04-07
1.0.0XPI · ZIP · Source code648.60KB02026-03-28
0.0.1XPI · ZIP · Source code782.15KB02026-03-13
1.0.1 650.47KB
2026-04-07 · 0 downloads
1.0.0 648.60KB
2026-03-28 · 0 downloads
0.0.1 782.15KB
2026-03-13 · 0 downloads

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.
  • Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  • Download the Requestman ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the Requestman ZIP file from step 1. Requestman is now installed on your browser.

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