Get official packages
Flux 2.6 offers a Windows x64 installer and portable package, plus a Fedora Linux x86_64 RPM. macOS packages are not available.
After downloading
Compare SHA-256 against the release checksum file. Launch the desktop once, enable the extension, grant permissions and refresh open tabs. If needed, repair the bridge in Settings → Browser integration.
Signing and browser-store context
Update signatures are separate from Windows publisher certificates. Check release notes for current Authenticode and Firefox signing status; permanent Firefox installation requires Mozilla signing.
Windows and Linux. One download space.
Install the RPM with dnf, then open Flux once as your normal user to register the browser bridge. The same Chromium and Firefox extension packages work on Linux. Update RPM installations through your package manager.
Linux validation uses a controlled Fedora environment, not every RPM distribution. Flatpak/Snap browsers may need an extra host connection. Firefox ZIP packages remain temporary unsigned extensions.
sudo dnf install ./Flux-2.6.6-linux-x86_64.rpm
flux-desktopNEW IN FLUX 2.6.6
Edit the filename, pick a folder and check quality and size in a compact window. Expand Details for advanced settings. Follow progress in a short window with an easy close-on-completion option.
Choose system, light or dark themes and a compact download list. Optional usage statistics ask for your permission first and can be switched off at any time. Your downloads stay on your computer.
On Windows, open Settings → Updates → Check for updates. On Linux, install the new RPM. For GitHub-installed extensions, replace the old unpacked extension with 2.6.6 and refresh open tabs. The free Flux desktop app is also required.
Get the Chrome extension from Chrome Web Store or GitHub. Firefox store approval is pending; the GitHub Firefox packages remain available. Store extensions update through the browser after approval; unpacked ZIPs are updated manually.