If you have been paying attention to the tech news you would be hearing how Yahoo is looking to sell off some or all of it's assets. This may concern because if you use yahoo mail it might one day just go away.
I have a yahoo mail account but I do not use it for anything other than junk mail. Mainly because it has become very slow, does not work reliably and sometimes not at all and now they are starting to play videos in my inbox when I have no mail. No, they did not ask me if I wanted to watch their videos, they force them on me. I can click the X and close them but that is an extra step I have to do when I clear my inbox, which is multiple times daily.
Now, yahoo mail is killing my battery. Yeah, that is right, yahoo is killing my battery.
Let's take a look at a process for Google Chrome before I have logged into mail:
The important thing to note here is that Chrome is not preventing my laptop from going to sleep. That means if I close the lid or select sleep from the Apple menu, it will go to sleep.
Now let's take a look at the same process after I log in to Yahoo Mail:
Now, Google Chrome is preventing my laptop from going to sleep. Which means even though I close the lid or select sleep from the Apple menu, by morning my battery is completely dead.
If you are a command line junkie like me, you can also run this command to see what applications (if any) are preventing your Mac from going to sleep: pmset -g assertions.
Once you run the command, look at the "PreventSystemSleep" line and if it not 0 (zero) then look in the list below for "NoIdleSleepAssertio" to determine which process is not allowing your machine to go to sleep.
If you are still using yahoo mail, it is time to find a new mail provider. I think I only have 2 or 3 more things I need to move, everything else has been moved, not I really need to move them so I can forget about my yahoo mail account.