I am currently using Tiddlywiki as it comes, i.e. from the folder Downloads\tiddlywikilocations\index.html. It works flawlessly to save the file in the browser if it is located in exactly this folder, but it seems not possible to either rename the tiddlywikilocationsfolder or move it out of the Downloadsfolder.
How can I achieve this? I couldn't find any further information about this on the wiki itself. Ideally, I would like to use Tiddlywiki from a custom folder in another folder, without otherwise affecting the standard download behavior in Firefox (where to save files etc.)
Timimi extension for Firefox looks like what you need.