For example, if I have several log files opened in previous session of TailBlazer and then I double clicked on another log file in Windows Explorer, TailBlazer opens this file in new tab, but this tab is not in focus. It's rather uncomfortably.

See screenshot:

1. Open several files in TailBlazer (unifond_20160706.log, unifond_20160705.log)
2. Close TailBlazer.
3. Double click on unifond_20160704.log. TailBlazer will be opened with three tabs - unifond_20160704.log, unifond_20160705.log, unifond_20160706.log and the last tab will be active, but it is desired to activate tab with file on which I double clicked.