So, are you worried about those bookmark icons (favicons) that are not refreshing? (An exception here is WhatsApp for Chrome. The WhatsApp favicon updates with the number of unread messages in real time, and also shows if you are offline) Here is a quick way to update them.
- Close Google Chrome
- Open your User Data folder
- Delete the Favicons file
- Start Chrome again
- Visit the sites that you want to force the icons, and they will be re-downloaded
Note: If you are looking for the location of the User Data folder, here is a handy list of where it can be found on different operating systems.
Helpful? Let me know!