Alphabetizing a bibliography with foreign characters
I use a number of Turkish authors for my work. When their surnames begin with a letter that is not in the English alphabet (example: Öztürkmen), Zotero often has trouble placing it in the right order. "Ö" should fall between "O" and "P" in the Turkish alphabet. When I generate a list of citations, however, it often defaults to the end, landing after "Z". Any suggestions of how I might fix this would be very much appreciated.
I'm also guessing that by web-based Zotero you mean Zotero in Firefox, not zotero.org. If you're using zotero.org, you will not have the option to change the language.
You´d get
Owens
Öztürkmen
Porter
in an English bibliography (umlauts are just treated like the regular vowel, so you´d get
Östürkmen
Owens
Porter
It´s likely a character composition issue. Try replacing the first letter of wrongly sorted authors by hand. They should then sort correctly.
For Turkish styles or with a client set to the TR locale, you do get the correct sorting, i.e.
Owens
Östürkmen
Porter
'Ö'.normalize('NFC').localeCompare('Ö'.normalize('NFD'), 'tr') == 0
I guess at this point it's quite important to figure out if you're actually using zotero.org or the Zotero client in Firefox.
See https://www.zotero.org/download/