Hi,
Unfortunately, with the latest update of Firefox (55.0.3) and Adobe Flash to 26.0.0.151 again appeared the "Adobe Flashplayer required!"
Since the latest Firefox update the Flashplayer is blocked on file:// urls. But by opening the tour_editor.html via a localhost server (krpano testing serves) should still work. In Chrome the using via the testing server would also work when enabling Flash and adding the testing server IP-address once in the Chrome content settings (here: chrome://settings/content/flash).
Sometimes earlier, when I ran the test server from the folder that Krpano was generating, I had a page in the browser where I could select the file to include. Now immediately opens the tour. Can I open folder with files in browser first, and from them I want to select viewer - not through test server?
Only the reduced 'tour_testingserver' opens the current folder and there the tour.html directly, the normal 'krpano Testing Server' doesn't open tour.html files by default automatically, there you can browse and manually open the files. Alternatively you can still anytime just enter 'tour_editor.html' in the browser url-bar.
Btw - about the problem itself:
In the next krpano release the tour editor will be integrated into the 'krpano Tools' application and be independent of the Flashplayer or Browser restrictions.
Best regards,
Klaus