I am make the swtich from google chrome to qupzilla. Now is my question how to make a backup and restore the backup with the bookmarks and speeddials I create.

I know there is a map here .config/qupzilla. Inside there is map profiles. Must I copy this map and restore after a new install?

In the map .config/qupzilla is a file named bookmarks.json. You can open this file with kate and there you have an overview off all your bookmarks. You even can edit this file to set your bookmarks (not the recommended way).

You will find an Import Bookmarks option in Menu File -> Bookmarks -> Organize Bookmarks. The opened wizard lets you import your bookmarks from firefox, google chrome, opera or html-file and export your bookmarks to a html-file.

Thanks I have find these and have my bookmarks install. I have install the dutch spell checker.

Next thing is search for other themes.