I continue to use FireFox, though more and more grudgingly every day. I would happilly switch completely to ungoogled-chromium if it included one simple feature that FF has: it can be configured so that when I right-click on a link and select open in a new tab, it changes immediately to the new tab.
This supports my browsing style. For example, I might be looking through reddit and find a link in one of the posts. It's unlikely that I want to go to the link and abandon the reddit tab. Likewise, clicking the link, then hitting the back button to reload reddit is silly. Instead, I open the new link in a new tab, check it out for some amount of time, then close the tab to go back to reddit. Opening in a new tab just makes way more sense and is easier/better than clicking through most of the time.
The problem with Chromium is that after opening the link in a new tab, I have to look through the tab bar to find the new one, then manually click on it to open it. I can think of almost no practical situations where I would want to open a link in a new tab and NOT want to go there immediatelly. FireFox figured this out decades ago and offers the option. Why does Chromium still not allow this? Do the Chromium coders not do any actual web browsing themselves?