These days, I learnt and wrote a Python script.
There are a lot of addons (extension) that are not compatible with Firefox 3, and this includes Mozilla Archive Format. Because of this, I need to use UnMHT. However, as what I had said, UnMHT will encode all the text into base64 encoding.
Because of base64 encoding, I cannot find “window.print()” easily. So, I decided to write a Python script to convert base64 encoding to quoted-printable encoding, at the same time I can also learn this programming language (because I never touched it before).
Finally, a commandline is written. And I convert the python script into exe file. The commandline can only convert only a single file. Actually this is written to solve my own problem. If you want, you can download it:
Note: I didn’t try to use the program to convert other MHT file, but only the MHT file saved by UnMHT. Therefore, I don’t know the other MHT file will be corrupted or not.