Flash photo upload link not working - macOS 10.13.2

I branched your post to a new discussion topic as it seems to be different than the issue reported to the discussion topic you originally posted to.

I have tested the autotrader.com photo upload workflow on the following systems:

• OS X 10.11.6 w/Safari 11.0.2 w/Flash Player 28.0.0.126
• macOS 10.13.2 w/Safari 11.0.2 and Chrome 63.0.3239.132 w/Flash Player 28.0.0.126
  • latest version of Chrome, downloaded for this test

I see the orange 'Upload Photos' button, that when clicked launches Finder.  On the left pane in Finder I select Photos (very bottom of the list).  Photos in the photo app display. I'm able to select a photo and successfully upload it to the ad.

Regarding the comment:

I just discovered that there should be photo gallery link in media menu, because it was change with new update but is not there too.

What "photo gallery link in media menu: are you referring to?  I do not see this on autotrader.com 'upload photos' step using OS X 10.11.8 and Safari 11.0.2

Also, both Chrome and Safari disable Flash by default.  At no time was I prompted to enable Flash, indicating Flash isn't being used.

Please provide exact steps to reproduce the issue you are observing on autotrader.com (and .  If possible, attach screenshots that show that behavior you are experiencing and notate what the expected behavior is.  To take/attach screenshots see https://forums.adobe.com/docs/DOC-7043#jive_content_id_How_do_I_attach_a_screenshot

Thank you.

What browser are you using?