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I'm currently trying out Loki, and it's running quite fine as far as I see. Only real annoyance: Firefox is currently showing a bug. If I open a Filechooser in Firefox, no matter if its for saving a page, uploading a file to a site,etc...nothing can be selected. You can browse all folders, navigate through them, highlight an entry, but the options to select an entry are missing. Literally: there is no OK Button.
Any others experiencing this?