Unfortunately, currently the latest versions if Firefox (current: 61) on Ubuntu Mate are not supported. Firefox crashes. The latest version that runs on Ubuntu mate is the 42.
To see all the versions that are currently known, madison helps.
madison is a small developer tool to read the apt-cache.
This is part of devscripts, which must be installed first.
1sudo apt-get install devscripts
Now madison can be used.
1sudo apt-cache madison firefox
The result is:
1ben@raspberry:~$ sudo apt-cache madison firefox
2[sudo] password for ben:
3 firefox | 61.0+build3-0ubuntu0.16.04.2 | http://ports.ubuntu.com xenial-updates/main armhf Packages
4 firefox | 61.0+build3-0ubuntu0.16.04.2 | http://ports.ubuntu.com xenial-security/main armhf Packages
5 firefox | 45.0.2+build1-0ubuntu1 | http://ports.ubuntu.com xenial/main armhf Packages
6 firefox | 45.0.2+build1-0ubuntu1 | http://ports.ubuntu.com xenial/main Sources
7 firefox | 61.0+build3-0ubuntu0.16.04.2 | http://ports.ubuntu.com xenial-updates/main Sources
8 firefox | 61.0+build3-0ubuntu0.16.04.2 | http://ports.ubuntu.com xenial-security/main Sources
All versions are displayed, including the version 61 not running on Ubuntu mate. But also the version that we need: version 42.
With the command
1sudo apt-get autoremove firefox
you can now uninstall the current version on the system. Now you can install version 42.
1sudo apt-get install firefox=45.0.2+build1-0ubuntu1
After the installation and the first start, Firefox will report that a new version is available. Do not install, otherwise you can start over again. :-)
Author
BEN ABT
Ben is a Principal Software Engineer at Medialesson.de, with a strong focus on .NET and Microsoft Azure. In his professional role, he designs and builds highly scalable platforms for hybrid and cloud-based scenarios. He also advises companies and C-levels on migrating to the sovereign cloud.
He runs myCSharp.de, the largest and most active German-speaking C# community forum, actively contributes to both his own and external open-source projects, and regularly shares his knowledge through his blog, at community events, conferences, and as a writer for technical magazines.
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