How do you download private tabs and websites to view offline on android

Hi You can Save a Private Page as PDF file Go to Menu and Tap the Share icon Select '''"Save as PDF"''' If you don't see it, look for a '''Print '''option and choose "Save as PDF" The file will be saved to your device’s Downloads folder. More info [[Save web pages as PDF in Firefox for Android]] or You can use Add-ons like [https://addons.mozilla.org/en-US/firefox/addon/single-file/ SingleFile] or [https://addons.mozilla.org/en-US/firefox/addon/offline-webpages/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search Offline Webpages]