Making backgrounds of animated GIF files transparent - Graphic

I have been creating animated GIF files using GIMP from several frames in PNG format that I created using Jmol and now I would like to know how to make the background of the resulting GIF files

Free Gifs for PowerPoint to Animate Your Killer Presentation

How to Create a GIF Using After Effects

How to make a video(WebM) with a transparent background - Honeycam

Open the Animated gif with the transparent backgro - Adobe

Green Screen Style Effect with Transparent Objects - Unity Forum

How to make a transparent background in Canva — Fallon Travels

java - Problem with gif with transparent background - Stack Overflow

How to Make GIF Transparent Online - Free & Efficiently?

Fire Clear Background Sticker - Fire Clear Background Animation

How to add background image to transparent GIF? - Help

Making backgrounds of animated GIF files transparent - Graphic

ffmpeg - Glitch when creating transparent animated gifs - Stack

Downloading with a Transparent Background - Piktochart Knowledge Base

How to Create a GIF Using After Effects

Guide on making animated loading images