The FileEditor remembers a recently opened file. At the same time, it is unable to remember the path this file is opened from. After browser restart always it always opens in config directory.
There is a magnitude of scenarios where the most recent path has to be remembered and used. All file managers I know follow that rule.
The FileEditor add-on only wraps existing software (hass-configurator) that is not managed by Home Assistant, so there is not really much that can be done about it.
Fair answer. On the other hand it’s the official add-on. The add-on suggested by official docs to be installed as the first add-on after onboarding. Then I expect HA team to be interested in improvements of this package.