ZeroWebTools Companion Firefox

Download ZeroWebTools Companion

Download ZeroWebTools Companion (current and past versions) for Firefox
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Modify request and response headers. No ads, no malware.
Latest Version: 0.1.7 Updated: a month ago

Ready to install?

ZeroWebTools Companion is available to install from Firefox Add-ons Store and for download from this page.
View source code

Available versions

You can find the current and older versions of ZeroWebTools Companion 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
0.1.7XPI · ZIP · Source code270.35KB02026-07-12
0.1.6XPI · ZIP · Source code270.46KB02026-07-11
0.1.0XPI · ZIP · Source code30.07KB02026-05-31
0.1.7 270.35KB
2026-07-12 · 0 downloads
0.1.6 270.46KB
2026-07-11 · 0 downloads
0.1.0 30.07KB
2026-05-31 · 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

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

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