Unable to Upload files

[Shelby W.]

I am using Mac OS High Sierra 10.13.2 and Firefox 57.0.1.  When I go to the Dropbox website and try to upload a file, I select the upload button, then choose that file that I would like to upload. (a file and not a folder), there isnt a Start Upload button....When I click on the upload button again, nothing happens. What am I doing wrong? Any help is appreciated!

[Daphne]

Hey @trishmennell,

I’m glad to hear you got this working via another browser, thanks for letting us know what worked for you! I can suggest clearing the cache in your Safari browser first.

Otherwise if this doesn't resolve the issue, please try a private Safari window and try again. If this allows you to upload files then it suggests that the cause is an extension in your browser. 

Hope this helps - Thanks!

[Mark Siegel]

 I had the same problem with Safari, which started only a few days after a Safari update from Apple.  Like you, I was also able to use the upload button successfully using Chrome.

After a little more research, I discovered Safari had non-functional upload buttons at other websites:  In my Gmail account, if I clicked on the paperclip icon to attach a file, nothing happened.  Same as with Dropbox, it should have opened a folder that I could navigate to find the file I wanted to upload, but nothing happened at all.  Same thing with my other email account at AOL.com.

I'm thinking it's a possible bug in the latest Safari update.  I was on the phone for 2-1/2 hours with Apple support yesterday trying to troubleshoot, and could not find a fix.  We sent in a system diagnostic report that the Apple engineers will look at, and I have a callback scheduled for today.

You should be able to find my postings if you follow @Mark Siegel 

One thing I'd like to suggest:  Call Apple Support and report the problem.  Tell them you know of others who are experiencing it.  Maybe that will help Apple realize they have a bug in Safari, and hopefully convince them to fix it.