我有一台富士通 ScanSnap S1300i。我从源代码编译了 SANE。当我运行时sane-find-scanner，给出以下输出：
sane-find-scanner will now attempt to detect your scanner.
If the result is different from what you expected, first make sure your scanner
is powered up and properly connected to your computer.
No SCSI scanners found. If you expected something different, make sure
that you have loaded a kernel SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x04c5, product=0x128d) at libusb:002:004
Your USB scanner was (probably) detected. It may or may not be supported …我最近安装了 Ubuntu，一切都很好，除了 Web 应用程序功能。
我已经尝试添加一些网络应用程序，但它有很多问题并且不是很好的体验。我也厌倦了被要求将网站添加为网络应用程序。如何完全从 Ubuntu 中删除 Web 应用程序？我同时使用 Chromium 和 Firefox。