MacOS – Chrome Bookmarks vanished after clearing history!

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I recently cleared my history from Google Chrome because of stupid MacKeeper ads, whenever I try to click on any site the new window bars open which was MacKeeper or another ad.
I was sick of it and cleared my history and unfortunately when I reopen my Chrome all my bookmarks have gone. I am so disappointed. I searched everywhere and tried everything but still I am getting these ads and no bookmarks have come back.
They said
"Here's where the Chrome bookmarks and the backup are located:
Macintosh HD/Users/your user name/Library/Application Support/Google/Chrome/Default/Bookmarks"

I tried to reach there but I didn't find any folder of Chrome or Google in my apps even Chrome is installed in my Mac and working fine.
Please, can any one help me out!
I didn't backup been ages :'(. I hope it is stored here some where.
Using Macbook Pro Yosemite

Best Answer

Try this to see if you're just looking in the wrong place...

Quit Chrome
Switch to Finder
Open a new Finder window, Cmd ⌘ N
Go To... Cmd ⌘ Shift ⇧ G
Copy/paste this ~/Library/Application Support/Google/Chrome/Default/ (including the tilde ~) into that Go To window
Hit Enter

What do you see?

Bookmarks ought to be in there, along with Bookmarks.bak
Hold Alt ⌥ & drag both to the desktop, for safety.
Delete Bookmarks.
Rename Bookmarks.bak to Bookmarks
Launch Chrome

BTW, ~ (tilde) is Mac shorthand for your home folder, in My hard drive/my user name/ without needing to know what they are called. It always goes to your home folder.