https://addons.opera.com/en-gb/extensions/details/steam-id-finder/
Steam ID Finder extension - Opera add-ons
Display Steam users' IDs. One-click to copy.
steam id finderextensionoperaaddons
https://addons.opera.com/pl/extensions/details/steam-id-finder/
Rozszerzenie Steam ID Finder - Dodatki Opery
Display Steam users' IDs. One-click to copy.
steam id finderrozszerzeniedodatkiopery