How about Ctrl+"/" for the within-message search bar? This would be somewhat different from Firefox but seems to be consistent:
"/" - Find as you type (Quick Find) Ctrl+"/" - Find in this message Ctrl+"F" - Quick-Filter search Shift+Ctrl+"F" - Full Search Messages dialog
How about Ctrl+"/" for the within-message search bar? This would be somewhat different from Firefox but seems to be consistent:
"/" - Find as you type (Quick Find)
Ctrl+"/" - Find in this message
Ctrl+"F" - Quick-Filter search
Shift+Ctrl+"F" - Full Search Messages dialog