This initially may sound like Facebook or Firefox issue - but it isn't, on W10 I access Facebook via Firefox For past couple of week I have been unable to attach any pictures to Facebook .... using normal method of clicking on camera icon (photo/video) on the FB status update. I use (Firefox v48.02) Also as an obvious a test tried MS Edge - same fault I get a moving bar that looks like upload is in progress then after a few minutes it just fails and goes back to the post ... occasionally it gives the word 'Error' and a blank pic with an 'x' but not every time. On a few occasions it loads what looks like a beige thumbnail ... but 'post' button never goes active. If I add the same picture to FB via my phone it works fine, so proves account & the pictures are OK. So must be PC config related. The only help from FB help pages is to make sure no old versions of Flash installed, and version is current. Also deleted history & cache. Additional point may help ... on help pages for FB it say to use option on main page to 'report a problem' when I try that I again get the moving bar and failure to complete ... so can't even report the problem. (did report from phone but response seems to be, thanks but we may never reply) Tested again today form 2 other device a PC and Laptop .... both W10 and both work. So pointing very much to be a file handling issue on my PC ............... can anybody help?