Safari acting crazy

Quit the application. Force quit if necessary.

Relaunch it by holding down the shift key and clicking its icon in the Dock. From the menu bar, select

Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data

to get rid of any cookies or other data left by the server. Open your Downloads folder and delete anything you don't recognize.

I'm glad to see that it's not just me this is happening to. This started for me about a week ago, after one of the Yosemite updates, and now every time I restart my mac, it opens automatically. Safari isn't in any startup items, so it's not set to open at login, I checked. I'm using Chrome as my default browser these days, so it's even more annoying to have this happen and not be able to stop it.

I am with you! Since the update on the 9th my Safari has reminded me of my Microsoft Internet Explorer days! Today after the 2nd update I can't get safari to load a page without having to force a reload and even after that it doesn't work.

Try a reset.

Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. Then try Safari/History/Show History and delete all history items. Quit/reopen Safari and test. You can also try try Safari/Clear History and Web Site Data. The down side is it clears all cookies.Doing this may cause some sites to no longer recognize your computer as one that has visited the web site.

Thank you for the help, but I tried all of what you suggested and none of those things helped. It's still opening on restart/login.

Guess I'll have to wait until Apple figures out they messed up and issue a fix.

Do System Preferences > Users & Groups > [your account]. Click the "Login Items" tab; does Safari show in that list? If so, use the "minus" button in the "plus/minus" box to disable Safari from launching on startup.

Thanks for your response. You probably missed my initial post, but that was the first thing I had checked, and it's not in the startup items. 🙂

This is a new problem.. I am having it as well. I have tried everything suggested here, but Safari immediately reopens upon quitting. Here is what happens: I right click on Safari in the dock, chose quit, or press Command-Q, and Safari quits, as indicated by the indicator in the dock going away that indicates open programs, but then it immediately reopens. The program will not stay quit. This seems to be a common but new problem, because people haven't found a solution yet.

I am a teacher in a Mac lab, and I have two different machines in my lab that have this problem, and it makes the computer unusable, because in some cases, Safari keeps hijacking the keyboard input. You are typing in Word, and Safari takes over as the active window, and keyboard input goes to Safari, this happens every few characters typed.

Well, I've seen two updates since I started experiencing this problem and it's still happening, and I'm no closer to figuring out what is causing it, let alone stopping it altogether. If I could be sure it wouldn't create even more problems, I'd simply uninstall Safari completely.