SKULL & CROSSBONES Firefox

Download SKULL & CROSSBONES

Download SKULL & CROSSBONES (current and past versions) for Firefox
Latest Version: 2.0 Updated: 7 years ago Removed

Ready to install?

SKULL & CROSSBONES is available for download. Be careful when installing it.
View source code

Available versions

You can find the current and older versions of SKULL & CROSSBONES 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
2.0XPI · ZIP · Source code303.19KB02019-05-15
2.0 303.19KB
2019-05-15 · 0 downloads
XPI ZIP Source code

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

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