This guide shows how to install the latest Firefox build on Linux and adjust key settings to reduce tracking, limit telemetry, and strengthen browser security.
Install a bootable Linux partition to your hard drive without a USB stick or manual BIOS configuration. ⚠️ WARNING: THIS SOFTWARE IS IN ALPHA AND IS NOT RECOMMENDED FOR USE ON YOUR MAIN/CRITICAL PC.
⚠️ Important: KSeF will become mandatory for large taxpayers on 1 February 2026, and for everyone else on 1 April 2026. Start your integration now! The main client class for interacting with KSeF API.