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I'm choosing a main browser, and I think that firefox with ublock and brave are probably equally good in terms of privacy and security, both of them look quite nice, and both are FOSS. The final thing that I'm considering is resource consumption. This reddit post shows that firefox is better than brave in benchmarks and ram consumption, but what about when firefox has ublock running and brave has all their preinstalled "extension" like brave rewards and wallet disabled (except brave shields is left enabled)?

Edit: some people are mentioning brave's cryptocurrency. I don't want to use that, and I would just turn it off and use brave as an improved chrome.

I want to backup my Mac onto my ssd drive so that I can safely upgrade to Mac OS sonoma beta, but time machine gives the error message that the disk doesn't have enough free space. I always thought that time machine automatically deletes older backups when it runs out of space, but it appears that it doesn't. I searched for tutorials on how to delete backups but none of them seem to work for the time machine interface on Mac OS ventura (most of them involve clicking a gear on the finder window in time machine but on my mac there's no gear icon). Any ideas how should I do that?

By "digital sheet music" I mean sheet music that can be opened in apps like musescore and synthesia (e.g. MIDI, musicxml). I used to download them from musescore.org but recently I found the search function stopped working. Is the site down or migrated to a new url? Now where can I download those digital sheet music?