Hi,
I think that "feature" that selects your content of URL if you typed something at new panel and unclick and click back to that panel is unnecesary and it's more like annoying than feature.
Detailed step-by-step how you can use that "feature":
- Open new panel
- Type something in URL bar
- Click to any other opened panel
- Click back to the first panel with something typed into URL
- Content/Text in that URL bar will be auto-sellected
- I had Google Chrome before FireFox and there don't exist this "feature" so I usually don't think about this and I will continue typing and at FireFox it deletes. Slightly annoying
- End