Also, just to confirm, the issue only with Firefox. yes? Windows File explorer do get skin properly, yes? Perhaps, do Firefox reset might help.
To reset Firefox settings to default, go to the Help menu (the three horizontal lines icon), select "More troubleshooting information," and click the Refresh Firefox button on the Troubleshooting Information page. This action closes Firefox, removes extensions and customizations, restores all settings to their original state, and then reopens the browser.
Step-by-Step Guide to Resetting Firefox
- Open Firefox: and click the menu button (the three horizontal lines) in the top-right corner.
- Click Help: from the dropdown menu.
- Select More troubleshooting information: to open the Troubleshooting Information page.
- Click the Refresh Firefox button, located in the top-right corner of the Troubleshooting Information page.
- Confirm the reset: by clicking the Refresh Firefox button in the confirmation window that appears.
- Click Finish: after the process is complete, and Firefox will reopen with its default settings.
Try that and report back.
Thank you,
Basj,
Stardock Community Assistant