WesUtil Firefox

Download WesUtil

By: WesUtil Add-on
Download WesUtil (current and past versions) for Firefox
xHeader
Modify request and response headers. No ads, no malware.
Latest Version: 3.1.26 Updated: 2 days ago

Ready to install?

WesUtil 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 WesUtil 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
3.1.26XPI · ZIP · Source code795.42KB02026-09-08
3.1.21XPI · ZIP · Source code781.39KB02026-09-07
3.1.18XPI · ZIP · Source code768.82KB02026-09-06
3.1.16Paid users only749.63KB02026-09-04
3.1.15Paid users only735.03KB02026-09-04
3.1.11Paid users only699.34KB02026-09-02
3.1.10Paid users only697.19KB02026-09-01
3.1.4Paid users only688.79KB02026-08-31
3.1.2Paid users only673.21KB02026-08-30
3.0.16Paid users only539.40KB02026-08-29
3.0.15Paid users only534.97KB02026-08-26
3.1.26 795.42KB
2026-09-08 · 0 downloads
3.1.21 781.39KB
2026-09-07 · 0 downloads
3.1.18 768.82KB
2026-09-06 · 0 downloads
3.1.16 749.63KB
2026-09-04 · 0 downloads
3.1.15 735.03KB
2026-09-04 · 0 downloads
3.1.11 699.34KB
2026-09-02 · 0 downloads
3.1.10 697.19KB
2026-09-01 · 0 downloads
3.1.4 688.79KB
2026-08-31 · 0 downloads
3.1.2 673.21KB
2026-08-30 · 0 downloads
3.0.16 539.40KB
2026-08-29 · 0 downloads
3.0.15 534.97KB
2026-08-26 · 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 WesUtil ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the WesUtil ZIP file from step 1. WesUtil is now installed on your browser.

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