In 21.10, when I try open a file, I could see a thumbnail preview on the right. This was true with Firefox, GIMP and Inkscape.
Sadly, after upgrading to 22.04, all I got are file names and an image icon in Nautilus.
Is it possible to somehow see which file we are adding to Firefox, GIMP etc as a thumbnail preview as available in 21.10 and earlier? Thanks.
11 Answer
Ubuntu 20.04.x
Gimp 2.10.28
Open Gimp
Menu > Edit > Preferences > System Resources > Image Thumbnails
Select something else than "No thumbnails"
Nautilus (from Bash prompt), AKA "Files":
The three dash (horizontal version of ///) clickable gadget just beside "_" (minimize window) in the upper right corner of the window has the settings.
In that menu you have Preferences > Search and preview (tab) > Thumbnails: move away from Never if set to that.
Firefox 99.0:
Enter about:config in the address field
Click Accept the risk ...
Then type Thumbnail in the search field that appears.
(No related settings as it seems, hmm? Neither so in Settings)