Attaching a screen recording from macOS 13: [link](https://drive.google.com/file/d/1__oXPoZKzVyX618-v8yvFlaUMOz8iVeR/view?usp=sharing). In Firefox 152.0.1, no `.pdf` file extension is shown when using **Print → Save to PDF**. In Firefox 153.0b1, the `.pdf` file extension is shown, and if it is removed when renaming the file, the file is saved without the `.pdf` extension. The regression range was made on macOS 13 based on the `.pdf` file extension showing and not showing. Note that on 152 the `.pdf` file exstension is not displayed but the file is still saved as a PDF. Also attaching a screen recording from macOS 10.15 with 153.0b1: [here](https://drive.google.com/file/d/1NlkQn75Bibwi_e6N7hsqPz3oGwg1bOnj/view?usp=sharing). On macOS 10.15, the default filename does not include the `.pdf` extension, and the file is not saved as a PDF if the extension is not added manually.
Bug 2048541 Comment 6 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Attaching a screen recording from macOS 13: [link](https://drive.google.com/file/d/1__oXPoZKzVyX618-v8yvFlaUMOz8iVeR/view?usp=sharing). In Firefox 152.0.1, no `.pdf` file extension is shown when using **Print → Save to PDF**. In Firefox 153.0b1, the `.pdf` file extension is shown, and if it is removed when renaming the file, the file is saved without the `.pdf` extension. The regression range was made on macOS 13 based on the `.pdf` file extension showing and not showing. Note that on 152 the `.pdf` file exstension is not displayed but the file is still saved as a PDF. Also attaching a screen recording from macOS 10.15 with 153.0b2 and 152.0.1: [here](https://drive.google.com/file/d/1NlkQn75Bibwi_e6N7hsqPz3oGwg1bOnj/view?usp=sharing). On macOS 10.15, the default filename does not include the `.pdf` extension, and the file is not saved as a PDF if the extension is not added manually.
Attaching a screen recording from macOS 13: [link](https://drive.google.com/file/d/1__oXPoZKzVyX618-v8yvFlaUMOz8iVeR/view?usp=sharing). In Firefox 152.0.1, no `.pdf` file extension is shown when using **Print → Save to PDF**. In Firefox 153.0b1, the `.pdf` file extension is shown, and if it is removed when renaming the file, the file is saved without the `.pdf` extension. The regression range was made on macOS 13 based on the `.pdf` file extension showing and not showing. Note that on 152 the `.pdf` file exstension is not displayed but the file is still saved as a PDF. Also attaching a screen recording from macOS 10.15 with 153.0b2 and 152.0.1: [here](https://drive.google.com/file/d/1NlkQn75Bibwi_e6N7hsqPz3oGwg1bOnj/view?usp=sharing). On macOS 10.15, the default filename does not include the `.pdf` extension, and the file is not saved as a PDF.
Attaching a screen recording from macOS 13: [link](https://drive.google.com/file/d/1__oXPoZKzVyX618-v8yvFlaUMOz8iVeR/view?usp=sharing). In Firefox 152.0.1, no `.pdf` file extension is shown when using **Print → Save to PDF**. In Firefox 153.0b1, the `.pdf` file extension is shown, and if it is removed when renaming the file, the file is saved without the `.pdf` extension. The regression range was made on macOS 13 based on the `.pdf` file extension showing and not showing. Note that on 152 the `.pdf` file exstension is not displayed but the file is still saved as a PDF. Also attaching a screen recording from macOS 10.15 with 153.0b2 and 152.0.1: [here](https://drive.google.com/file/d/1NlkQn75Bibwi_e6N7hsqPz3oGwg1bOnj/view?usp=sharing). On macOS 10.15 with 153.0b2, the default filename does not include the `.pdf` extension, and the file is not saved as a PDF.
Attaching a screen recording from macOS 13: [link](https://drive.google.com/file/d/1__oXPoZKzVyX618-v8yvFlaUMOz8iVeR/view?usp=sharing). In Firefox 152.0.1, no `.pdf` file extension is shown when using **Print → Save to PDF**. In Firefox 153.0b1, the `.pdf` file extension is shown, and if it is removed when renaming the file, the file is saved without the `.pdf` extension. The regression range was made on macOS 13 based on the `.pdf` file extension showing and not showing. Note that on 152 the `.pdf` file exstension is not displayed but the file is still saved as a PDF. Also attaching a screen recording from macOS 10.15 with 153.0b2 and 152.0.1: [here](https://drive.google.com/file/d/1NlkQn75Bibwi_e6N7hsqPz3oGwg1bOnj/view?usp=sharing). On macOS 10.15 with 153.0b2, the default filename does not include the `.pdf` extension, and the file is not saved as a PDF. With Firefox 152.0.1, it is saved as a PDF.