Our team maintains Firefox RPMs for Fedora and RHEL and a lot of people have been asking us to provide Firefox for Flatpak as well. I’m finally happy to announce Firefox Developer Edition for Flatpak.
We started with the Developer Edition because that’s something that is not easily available to Fedora users. Providing the standard Firefox wouldn’t bring a lot of benefit right now because it’s available very quickly after upstream releases via Fedora repositories. In the future, we’d like to add releases of the standard Firefox (nightly, stable, perhaps ESR).
Firefox DE for Flatpak is built on our internal build cluster and hosted on mojefedora.cz (mojefedora == myfedora in Czech) on OpenShift. It’s an unofficial build for testing purposes, not provided by Mozilla. We’d like to work with Mozilla, so that it can eventually be adopted by the Mozilla project and you can get Firefox flatpaks directly from the source.
Right now, Firefox DE is not sandboxed, it has full access to user’s home. In the near future, we’d like to start a devel branch in the flatpak repository where we will ship a sandboxed Firefox and experiment how well Firefox can handle sandboxing and what needs to be done to assure the expected user experience. A web browser is definitely the #1 candidate among desktop applications for sandboxing. If you’re interested in sandboxing Firefox on Linux via Flatpak, contact us (you’ll find Jan’s email on the website with installation instructions).
We’ve tested the FDE flatpak on Fedora 25, openSUSE Tumbleweed, and Ubuntu 16.10. You need flatpak 0.6.13 or newer for the installation commands to work. The repo should work with older versions as well, but there was a change in command syntax and the commands we use don’t work in older releases than 0.6.13. Fedora 25 has the newest release (0.8.0), openSUSE Tumbleweed has a new enough release (0.6.14), just for Ubuntu you’ll need to install the newest flatpak from a PPA.
GNOME Software in Fedora 25 also supports adding repos via .flatpakrepo files and installing apps via .flatpakref files, but it’s not reliable enough yet, so we only recommend you use the command line instructions. It’s just two commands (you only need the latter one on Fedora 25 with the newest flatpak).
There are also a couple of problems we haven’t quite figured out yet. In openSUSE and Ubuntu, the desktop file database is not refreshed after the installation, so the launcher doesn’t appear right away. You need to log out and log in to refresh it and make the launcher appear. In openSUSE Tumbleweed in KDE Plasma in a VM, I couldn’t start the app getting “no protocol specified, Error: cannot open display: :99.0”. We’re looking for hearing from you how it works on other distributions.
Although the repo is for testing purposes, we’re committed to updating it regularly until we announce otherwise on the website with the installation instructions. So you don’t have to worry that you’ll end up with a scratch build that will never get updated.
At last, I’d like to thank Vadim Rutkovsky who made the initial proof-of-concept Firefox build for Flatpak we built upon, and Jan Hořák who did most of the work on the current build and repo setup.
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