Right now i bookmarked this page, switched to several other tabs/sites and tried "Replace" = after first replace bookmark got "default no icon" and stayed like that though the test. Though i must mention, that when i switched back to this page/tab and made final Replace - the icon updated to proper Cent's one. BUT when i made again same series of Replace on different sites and came back to this site/tab - Cent's icon didn't get back too. I'd presume that once-success was due to some caching, but a mystery remains why it failed after a minute. Yet at the same time, i really can't believe all the other sites have problems with their icons, cause if i simply add those to bookmarks(as usual, single time, without Replace) - their icons always added properly.
Just in case, while i'm using the latest 5.3, maybe it's exactly the x86 version's issue = can't check/compare x64.
Just in case, while i'm using the latest 5.3, maybe it's exactly the x86 version's issue = can't check/compare x64.