I'm experimenting this same thing with Firefox since upgrading to OpenBSD 7.2. Crashing also seem to match the timestamp of pledge "rpath" log messages. I had no time to investigate seriously so I'm not sure what is causing it (sure it's not Mastodon because I don't use it). I also didn't change anything in its global configuration. Also, the rofi tool is crashing 50% of the times I try to run it.

I'll try this weekend to find what it's happening.