Wow, Opera 48 converts units, time zones and currencies on text selection. That’s really awesome.
Some WebExtensions attempt similar things but as there’s no native select popover thingy in Firefox, they either add a context menu item (okay) or just edit text inline (please don’t). At least they don’t inject custom UI into the page.
Post your response
If you write a response on your website, mark it up with h-entry and let me know the URL: