I would like to report a FireFox extension developed recently by Jeremy Ruston that goes beyond the need to modify the FF's configuration file
The extension is TiddlyFox.
To install it, download the file
xpi that you'll find at the indicated address. Then, in FireFox run:
Tools => Add-Ins => Options button (the gear ...) => install the add-in file .... Now you have the usual dialog box to select a file from the file system of your PC. Locate the downloaded
xpi file and confirm the operation. FireFox will load the extension but not the trigger. To enable it, push the
Activate button on the line showing the extension.
Be careful, because the activation of TiddlyFox restart your browser.
At this point you can again save a TiddlyWiki file without bothering to change the
prefs.js file of FireFox.
Great! My big thank you to Jeremy.