Recently lost SD card where I had some things saved under mozilla/Firefox folder in phone; is there anyway I can retrieve these "things" in file?
Does mozilla/Firefox have a back up to files located in phone memory?
Does mozilla/Firefox have a back up to files located in phone memory?
Opaite Mbohovái (2)
You might need a third party app in order to look for the folder on the device memory.
The folder that Firefox for Android uses by default isl locally in the data/data/org.mozilla.firefox/
However some of it may be encrypted.
You mean the files were downloaded to the SD card and the SD card is missing or unreadable? I don't think Firefox normally makes backup copies of downloads in other locations.