Preserve text in URL Bar after auto reloading
Seems like setTimeout() is needed only in SeaMonkey...
(closes #86)
Get real owner tab from source document
Note: "ownerTab" parameter isn't used in SeaMonkey for now
(part 1 for #87)
Add "rememberOwnerTab" preference (disabled by default)
(part 3 for #87)
Add debug log for owner tab
(closes #87)