Under Firefox 57 and 58, Capture & Print did not work for printing until AdBlock Plus (ABP) was disabled. Clicking on the Capture & Print icon brings up the yellow overlay and allows selection of the area to be printed. Next, Print Preview comes up, but with AdBlock Plus enabled, the entire web page is previewed, as usual, not just the area selected for printing. With AdBlock Plus disabled, Capture & Print works correctly for printing. Capture & Print works correctly for copying to the clipboard, even with AdBlock Plus enabled.

Please fix Capture & Print so AdBlock Plus does not have to be disabled before printing and then re-enabled after printing. Thanks for updating the extension to work in the new Firefox environment.