I have an unusual and possibly easy question. Since the last update in Yosemite 10.10.3, activity monitor/ TOP has shown me that accountsd (process) is using large %'s of the CPU, 70+. I noticed this shortly after the update when my fan was whirling around while I did nothing but surf the web via Safari. The first thing I did after using Activity monitor was to disable the few extensions I was using in Safari, Pocket, PushBullet, and FBPurtity. I then restarted leaving ADBlocker and WOT on. accountsd still popped up and I forced quit it only to have it restart again. I then opened up Chrome and killed Safair and NO accountsd process launched. I have been using Chrome since. This morning after last nights restart I opened Mail for the first time and the accountsd process again launched and demanded large %'s of CPU power. I tried a few things like deleting obsolete emails, passwords, etc. and it seems to have settled down.
What is accountsd ? Why does it only fire up in Safari and Mail?