- 'Open tab' actions do not work for images when used via the context menu.

- Mouse operations in 'Menu-Search' do not enable the 'Apply' button.

- The start of the preference dialog takes to long.

- Drag gestures work by capturing the right mouse button. There can be
  only one installed extension behaving like this. If compatibility issues
  arrise, drag gestures can be disabled in the 'Extra' tab.
