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by swozey 2515 days ago
Dark Reader which is one of my must-haves has a known Firefox performance issue on a LOT of sites that makes Firefox almost unusable for me, so I recently begrudgingly switched back to Chrome.

https://github.com/darkreader/darkreader/issues/535

1 comments

>Unfortunately Firefox is terribly slow in unpredictable places. I periodically try to find out what exactly makes it work slow in Firefox. For example this change improved twitter.com loading from ~30s to ~1s.

His change[0] was changing array population from repeated concat to push. This is not an unpredictable hot spot but a developer not knowing his tools. Common sense is not premature optimization.

[0] https://github.com/darkreader/darkreader/commit/09b24d052e07...