When I use KDE, konqueror is my best friend. I use it all the time. For viewing, browsing file, open some FTP site, browse windows’s shared folder, etc. I browse text file most of the time. If I need to peek the content, I just need to hover my mouse to the file and a tooltip (large tooltip actually) will pop up with some file text content in it. See screen shot for reference. This one little feature is what I missed in nautilus. Is someone know how do I enable it or there’s no such feature right now? If there isn’t then I should have sent a feature request to gnome.