Step "I open the address "([^"]*)" in the Tor Browser" is fragile

  step "I open a new tab in the Tor Browser"
  @screen.click("TorBrowserAddressBar.png")

… assumes that the new tab is open immediately, as soon as one has clicked on the new tab button. I’ve seen it failed on isotester1.lizard. We should either replace click with wait_and_click (and e.g. a 5 seconds timeout), or , probably better, have the “I open a new tab in the Tor Browser” actually check that it has produced the intended result.

Feature Branch: kytv:test/8698-open-address-tor-browser

Parent Task: #8539 (closed)

Original created by @intrigeri on 8698 (Redmine)