Created attachment 8896980 [details] screenshot firefox sync not displayed User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0 Build ID: 20170612121707 Steps to reproduce: I recently installed Ubuntu GNOME 17.04 in a Dell XPS 15 (9560). In Firefox preferences, in "Sync" settings nothing appears, just the tittle Sync, and the rest of the page is blank. I've also tried to import manually the bookmarks without success, nothing happens. Actual results: Sync options are not displayed. Import bookmarks.html manually not working Expected results: It should show Firefox sync options and complete the log in process.
[SOLVED] I had an "Arc theme" appearance plug-in enabled and when I turned it off, the Firefox sync log in options appered