Click the triangle besides Name & Extension to expand the tab. Tick or Untick the box of “Hide extension” to show or hide extension for that file. Show or Hide Extension For All Files. Open the Finder app on your Mac. Click on Preferences in the top menu. Click on the Advanced tab to view more options. Mark or Unmark “Show file name.
OS X can use file extensions or meta-data about the file in order to determine the file type and how to open it. If stored to a native OS X HFS+ filesystem, then the meta-data is stored within the filesystem itself. On network shares that are AFP volumes, the meta-data is sent along with the file information and the host environment figures out how to store it -- most importantly is that OS X basically sees the file and meta-data just like a native volume.
If you use a non-OS X protocol like SMB/CIFS or NFS, OS X will write the file data and the meta-data separately. The meta-data is stored in a file with the prefix '._'. So, say you have a file named 'My Document', there would be in the same directory a file called '._My Document' created that has all the meta-data. When a Mac accesses a non-native filesystem, the operating system knows to use the dot-underscore files and it does the correct thing when copying files back and forth (merging the meta-data back into the native filesystem, for example).
In your scenario, it sounds as if the meta-data is being lost. This could happen if the meta-data files were deleted for some reason, or the file server prohibited access to files starting with '.', or any of a slew of other reasons. You might consider using the Terminal to check if the meta-data files exist and are accessible.
Jan 14, 2010 11:27 AM
Even if you are a true Mac enhusiast and swear by the use of Safari as your primary browser, there’s no denying that Google Chrome is the most popular web browser in the world, and for very good reasons. One such reason is the ability to install countless add-ons and extensions, making your Chrome experience more convenient and complete.
From the Mac OS X Desktop, pull down the “Finder” menu and choose “Preferences” (this is labeled. In the Finder on your Mac, show filename extensions, if you find them useful. They’re usually hidden in macOS.
However, this is a double-edged sword since this benefit of the browser is also its weakest link: add-ons can slow Chrome down and occupy precious system memory on your Mac. And if you download the wrong extension, hackers can even get access to your precious private information or your computer can become infected with malware and all sorts of viruses.
We won’t say, though, that you should get rid of all of the extensions in your browser, but if you want a healthy Mac to serve you for a long time, you should get your ‘sweeper’ ready.
Download CleanMyMac X from MacPaw’s website and clean up to 500MB of junk data from your computer while enjoying all the features of the software without major limitations.
Option 1: Manual Removal
The best way of manually removing unnecessary Chrome extensions is by using the browser itself. After launching Chrome, click the three dot menu button (right next to the address bar), scroll down to “More tools” on the list of options, select Task Manager, and then find out which extensions are using your CPU the most (aside from Chrome itself, of course). Then you can simply end any process you deem unnecessary.
However, if you’d rather remove the extensions for good, then choose the Extensions tab from the “More tools” sub-menu. Here all the add-ons that are installed on Chrome are shown, and you’ll be able to either disable them or delete them completely by clicking on the trash icon.
Deleting Chrome Files From Mac
With that said, don’t forget that sometimes the trash icon won’t appear next to the add-on, and therefore requires the aid of an uninstaller. Additionally you’ll need to deal with leftover files even after you have finished the uninstall, since extensions are saved to Google’s directory as well. To find these files, follow the path /Users/username/Library/Application Support/Google/Chrome/Default and delete any unwanted folders.
However you should note that you’ll need to know the extension’s ID of the add-on you’d like to remove to know which folder to delete, and this ID code can only be seen in Chrome’s Developer Mode. But this is a tedious process, especially if your browser is synced, meaning that you have to perform all of the above on each device that has Chrome installed.
Option 2: Using a Mac Optimizer
A better and more convenient method of dealing with unwanted Chrome extensions is using Mac optimization software like CleanMyMac, which can detect all extensions, plug-ins and widgets in your Mac (and not only for Chrome). This way you don’t have to look anything up by yourself, and can decide which add-ons should be spared, reset, disabled, or removed completely. Some optimizers include antivirus as well, which can automatically detect a malicious extension and either stop you from installing it or suggest that you should remove said item as soon as possible. And as for any leftover files (i.e. all that junk data), don’t worry: run a deep system scan to remove those pesky unwanted remains of previously deleted extensions with a single click.
Safeguarding Data From Add-ons
The issue with certain third party Chrome extensions lies not just in the fact that they may be resource hoggers slowing down your Chrome experience. Dodgy Chrome extensions manage to find their way into the Chrome Web Store, as they may seem harmless at first sight but are just after your browsing and private data. An example of such a Chrome extension caught in the act is Hola Better Internet VPN, an add-on that was actually supposed to protect and encrypt your data.
While Hola is an example of a VPN extension gone rogue, there are trusted VPN browser add-ons that have clear policies stating that they won’t capture your data to abuse or sell it. Such VPN add-ons also help you block ads and ad scripts that may drive Chrome crazy, while stopping other add-ons from collecting cookies and other data in your browser. Though you’re adding yet another extension for Chrome to deal with, such an addition from a VPN service will smoothen your browsing experience and won’t leave you with regrets should you find your data has been exploited by one of your other extensions.
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