I've noticed the same with web-able apps, you spend time typing-up some missive and then it freezes and refreshing the page loses it all. Could linux write everything to a file every 30 seconds. A bit like a keylogger, only you know it is there.
There used to be a Firefox add-on called Lazarus that did this. https://www.pcworld.com/article/227948/Firefox.html From Tom's Hardware: "Lazarus: Form Recovery is a free downloadable Add-On for the Firefox web browser that automatically saves everything you type into forms of web pages you visit. With Lazarus: Form Recovery, you will never lose what you write after a crash the browser or other technical problems. In…
https://addons.mozilla.org/en-US/firefox/addon/form-history-...