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Download tar.gz, unzip and run binary and recheck. in Firefox then first thing before deeping into it should be retesting it on upstream release. We can improve it performance, or launch time etc. We can ship customization like force app to match theme, style etc. Then we write fix and offer it and sometimes we see: "hey good job thanks" or "nah, works fine on Ubuntu, and Arch is not my target and thats why we don't want merge it, please fix it on your own". We can fix platform specific bug - because upstream not always is interested in fixing it (many times upstream doing this - it works on Deb/Ubuntu so not my problem). We can apply patches that fixing annoying issues before upstream.
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We can ship package with security fixes before upstream. rpm/.deb/etc It's not like "hey dude, stop package XYZ app because upstream provide installer for it and it is better and you broke community and wasting effort". Having trouble Get help with your installation. we often fixing and cleaning mess when package application into. Thunderbird Download Thunderbird Thunderbird Your download didn't start automatically Release Channel Try again Beta Channel Try again Daily Channel Try again Just one more step Finish installing, and start enjoying Thunderbird.
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