In Chrome, you can pin a tab that you use often by right-clicking the tab and selecting “Pin”. This will move the tab to the far left and will show only the icon, which saves space and makes it so that you cannot accidentally close that tab!
You can unpin a tab by right-clicking on it again and selecting “Unpin”.
Pinned tabs will not stay after you close the browser and reappear when you next open Chrome unless you going into your Chrome settings, select “On startup” from the left menu, and select “Continue where you left off”. If you do this, all the tabs you had open when you last closed Chrome will reopen when you open the browser again.