Q: [Safari] Problem with browser back button

Delete cookies and website data and see if that helps.

From your Safari menu bar click Safari > Preferences then select the Privacy tab.

Click:  Remove All Website Data

Quit and relaunch Safari to test.

If that didn't help, delete the cache associated with Safari.

Open a Finder window. From the Finder menu bar click Go > Go to Folder

Type or copy paste the following

~/Library/Caches/com.apple.Safari/Cache.db

Click Go then move the Cache.db file to the Trash.

Quit and relaunch Safari to test.

BTW, your profile indicates your Mac is running v10.10.3. If that is correct, the v10.10.4 update is avaiable from the App Store.

Click your Apple  menu top left in your screen. From the drop down menu click: App Store then select Updates.

Same problem here.

deleting cache.db did not work.

Remove All Website Data may have worked.  time will tell.

I spoke too soon.  There's no change.  The problem still exists.

me too

even had it happen after I signed in to this forum and tried to go back to post this note :-)

same problem here

delete cache didn't solve

macbook pro 15-inch (Mid 2009)

Experiencing the same problem.

OS X 10.10.4

I had the same problem. I just clear ed the preferences in my homelibrary  and the problems seems to be solved… Let's hope it keeps being solved!

I cleared these :

com.apple.Safari.Extensions.plist

com.apple.Safari.plist

I also have this problem; started a week or two ago.

Started with 10.10.4 for me on multiple machines.

I may have resolved mine by changing the search engine, searching, then changing it back to google. Perhaps that clears a cache somewhere.

I can confirm all my 4 macs have this problem after 10.10.4

Its something related to cache. Fresh sessions don't  have the problem. Only after some safari use the problem apear.

Delete cache, reset safari, etc... won't solve

This problem is very annoying

MacBook Air 2014, Mac OS 10.9.5 Mavericks: same problem has appeared after a bunch of the following recent updates:

Safari 7.1.7 update;

MacEFI Security update 2015-001;

Security update 20015-005

Same thing here, I'm considering switching to Chrome even though I never liked it now it's working very well. Apple doesn't seem to care about Macs anymore, only focuses on the stupid and useless watch and how to make more money, not how to make useful and better tools as it did some years ago.

Sorry for the rant but I had to take that out, I'm getting tired of waiting for good Mac upgrades, since some of us do use them as work tools, not as fashion accessories.

I switched from using Safari/Google to Safari/Bing.    Tested it a bit and so far it seems to not happen with Bing.  fyi