Firefox 57 and 58 shaping up to be the best Sync releases ever!

Christopher Karlof ckarlof at
Wed Nov 8 19:42:00 UTC 2017

Thanks for sharing, Mark. I'm proud of the transformation the team has made
to becoming more data driven over the last 12-18 months, and it's fantastic
that we're seeing it in the results. I know it was a little tough going in
the beginning, and I'm grateful you all stuck with it!


On Tue, Nov 7, 2017 at 3:56 PM, Mark Hammond <mhammond at> wrote:

> Thanks to our recent investments in telemetry and the hard work of the
> sync team while I was on PTO [1], I'm happy to report that Firefox 57 and
> 58 are showing the highest success rates for all versions post 54. (So
> maybe not "ever", but I suspect that's actually true).
> This is true for *every* engine other than the kinto-based
> extension-storage engine, which sadly is showing the worst success rates
> for those versions - but that's a topic for a different thread.
> 0d9d8a4f0b9e9a1/Success-Failure-Error%20rates%20per%
> 20engine%2C%20by%20version.ipynb
> This is great news for the upcoming 57 release and testament to the unsung
> work the Sync team has been doing over the last few months. So
> congratulations on the great work done by everyone and thanks for all your
> contributions!
> Mark
> [1] I'm still trying to decide if me being on PTO is causation or
> correlation, and whether me taking another large chunk of PTO could help
> prove that? ;)
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