when clicking open folder the system launches VSCode

Hi everybody I want to start to say thank you for your time! I have a problem and don't really know what to do to solve the problem. When i download something and I click on the arrow in Firefox to see my downloads and then click on the folder next to the application name it should open the folder where it is saved? (I think something like moz/.tmp) anyway when I click on the folder it opens VSCode. what did i do wrong? even after "extraction completed successfully" and i click Show the Files it opens VSCode Running Linux Lite 4.8 x86_64