I was looking deeper into Firefox optimization, and I found Adventures in Firefox-places.sqlite. It’s a pretty intense analysis that goes beyond the usual simple, in-browser SQL vacuum that I’ve mentioned in the past. It was written with Mac OS X and Linux in mind, which is fine, but if you run Windows, you might want to do the same thing.
It has two benefits. It speeds up Firefox, and it reduces the amount of disk space your Firefox profile occupies. The two things are related; smaller databases are quicker and easier to navigate than large ones. As for why you should care about the amount of disk space it takes up, well, on an SSD every megabyte counts.
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