When downloading a file, Automatic Save Folder will automatically select the folder where the file will be be saved to according to filters and allows creating folders based on dynamic variables, like the date of the day or the filename's extension, domain's name, etc.
This project is not active but not abandoned.
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I just don't have time to maintain it, but will come back to it later.
Last compatible version :
Firefox 46
Issue report and comments and reviews
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Please, don't report that it's not working on latest Firefox with v1.0.4.
Use the latest 1.0.5b instead.
This is open source and you can help and contribute to development if you want.
You can post reviews based on working state of the add-on (use Firefox 31+r128, or 43+r129 for example) to make a constructive review about the available add-on features.