Ha! I remember when I encountered my first .tar.gz file. I immediately
googled Altavista'd "how to open tar.gz file". I'm pretty sure I did not find a solution.
On the topic of Chrome eating memory for breakfast... I remember upgrading my old laptop from 2GB to 4GB RAM because it would occasionally hang if I had too many (read: 8 ) tabs open.
Ironically, the reason I no longer use that laptop is because it has begun freezing at around the 8-tab mark again, which means it and slack have increased their memory consumption over time
640k ought to be enough for anybody