Weird thing happening with my finder toolbar

You might also want to delete the "com.apple.sidebarlists.plist" file, as Ian suggested above.

Askel, you may also need to rebuild your system's Launch Services. You can do this by entering the following command in the Terminal:

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

Please note that the above is one solid line of text in that command, although it may appear as two lines here on the forum.

When you use that command, for a few minutes -- it could be maybe five minutes on a fast machine -- you will just see a blinking cursor in the Terminal window, and it may appear as if nothing is happening. Actually, however, the Launch Services database is being rebuilt.

Once the Terminal prompt returns, type the following:

killall Finder

Then hit your "return" key.

Upon doing this, your currently open Finder windows -- if there are any -- will temporarily disappear, and then return.

That's it. Your Launch Services database should now be rebuilt. Hopefully, this will fix your problem, if deleting the plist files doesn't do it for you. This definitely seems like a Finder or Launch Services issue to me.

Please let me know if the above helps.

Something else you might want to try is deleting the Finder's .plist file in ~/Library/Preferences. It is called "com.apple.finder.plist".

After you trash it, log out of your account, and then back in again, so that your system can create a new plist file.

I hope it helps. Let me know. Thanks!

In addition to what WordWeaver777 has suggested try deleting

~/Library/Preferences/com.apple.sidebarlists.plist

and then re-booting your Mac. This usually clears up sidebar glitches. Hope this helps you! Regards, Ian.

While I may be mistaken, the impression I get is that the reason why you can't delete them is because those are probably the default icons for the items which are normally found in the sidebar. That is, Home folder, Desktop, Document, Downloads, etc. It looks to me like you have experienced some kind of data corruption which has resulted in the default icons being replaced by what you see there. It almost suggests that those items are actually missing, so you are getting the icon with a question mark instead.

Do you by any chance have any Finder replacement apps installed, such as XtraFinder, Total Finder, Path Finder, etc.? If so, maybe one of those is the problem.

Have you tried to relaunch the Finder by option clicking the Finder icon in your Dock?

The aforementioned two files are located here:

Home folder (the folder with the little house icon with your username on it.

Library

Preferences

com.apple.finder.plist

com.apple.sidebarlists.plist

You can navigate there manually in the Finder, or you can click on the "Go" menu in your menubar at the top of the screen. Click on your Desktop first to make sure that you are in the Finder, or else you may not see the "Go" menu.

Under the "Go" menu, select the option which says "Go to Folder".

When the little window appears on your screen, type in the following:

~/Library/Preferences

Then hit the "Go" button.

This will place you in the "Preferences" folder.

Look for those two files named above and trash them.

Log out of your account, and then back in again. In fact, you may even want to restart your machine after doing the above steps.

If the above does not fix your problem, then we can try to repair Launch Services, as I explained above. But try the above first.