Fedora 29 (Cinnamon) Firefox / Chrome Bug

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Hey! first time poster, long time lurker here. I recently upgraded to fedora 29 and have started to encounter a problem; I have both chrome and firefox installed, in both cases file manager crashes when I try to download & save a file. the file doesnt download. when I do click save, on an image for instance, I select where I want to save e.g 'Pictures' but the location entry at the top wont change from /USERNAME/ and the picture wont even save there. I have installed and completely wiped all data from both and reinstalled. same issue.

hope all this makes sense.

thanks