You don't need to use the plugins to create citations! Zotero offers the option to manually copy citations to your clipboard right from your library.
1. Right-click on the source you'd like to cite
2. Select 'Create Bibliography from Item'
3. Use the pop-up to choose your desired citation style
4. Under 'Output Mode,' select either 'Citations' or 'Bibliography'
'Citations' creates an in-line citation.
'Bibliography' creates a bibliographic citation.
5. Under 'Output Mode,' select 'Copy to Clipboard'
6. Paste your citation into your document
