hello there,
started to use NG since some weeks, after being tired of the old miranda IM client.. the facebook plugin is great. its very stable for me.
however i have some suggestions:
1) better handling for emoticons. right now only a few emoticons are displayed correctly. if people send you messages from an iphone with their emoji keyboard, they are not displayed correctly - however fb website does render them correctly. that is, when using history++ plugin for message window (not ieview). i found alot of high-res "whatsapp" emoticon packs for pidgin etc. but i couldnt make it all work with smileyAdd etc.
2) stickers are mostly displayed correctly upon receiving them. however, the stickers you send to somebody (with your iphone or on the website), are not displayed at all. it would be also nice when the text "User sent a sticker" and the URL would be hidden, just display the sticker graphic.
3) sync of messages works not too bad. but there is 1 issue: leave message window open, standby laptop, chat with iphone, open laptop (message window still open) == no sync will happen. message sync will happen only if you close the window and re-open it. idea: re-sync upon re-connection to fb
4) arriving messages should be marked as read to the sender only when i actually open the message window (active), instead arriving messages get marked as read even while the message window is minimized and inactive.
please let me know if you have any questions to that. i will try to explain as good as possible.