I always wonder what I do wrong, but have found a method to circumvent the problem.
The problem... To get a gif to work on my blog.
I find a gif on another site, and right click to save it. I save it as a gif file.
When I try to upload it to blogger, it is only a stationary picture
Thus, my method is leave it open in one window, open a new window that has blogger open with a new post, sand then drag and drop it onto the post.
If the above gif is working, then all is well.