I’ve experienced this UX issue enough times that it’s gone from forgettable minor annoyance to “post about it in the community forum” 
Chrome, Edge, and Firefox all allow you to open links in new tabs. You accomplish this by right-clicking, and selecting (in all browsers mentioned) the first option:
In Fibery, the right click also exposes “open in a new tab”, which I love for managing my workspace. However, the FIRST option in the right click is “Remove from Favorites”
Out of years (decades?) of muscle memory, I’ve clicked on that more times than I’d care to admit. Which then sends my carefully curated item from my list of Personal ‘favorites’ into the void. Yes of course I can find it again and re-add, but it’s annoying!
I’d argue that new number of times I’d want to remove something from my favorites compared to the number of times I’d want to open it in a new tab is dramatically smaller. Could we look to switch the order of this “destructive” action around a bit on the Desktop app?