Hello stoj, Uncheck Block Pop-up Windows [ ], go from Firefox button > Options to access the options window > Content panel (don't forget to click OK to save it), see for more info Content Settings

thank you

hello, you can enable/disable the popup blocker in firefox > options > content.

See Tools > Page Info > Permissions with the page on display.

You can inspect and manage the permissions for all domains on the about:permissions page.

• https://support.mozilla.org/kb/how-do-i-manage-website-permissions