Hi, Follow the steps given below 1.Navigate to Tumblr's Mega-Editor Web page (link in Resources), then log in to your Tumblr account, if prompted. 2. Browse through the thumbnail display screen within the Mega-Editor until you find the photo you wish to delete. 3. Click the photo to highlight it, then select "Delete" from the Mega-Editor's top menu bar. If no other users have re-blogged your photo, the action is complete. If other users have re-blogged your photo, proceed to Step5 4. Contact users, via email or a Tumblr message, who have re-blogged your photo and ask them kindly to remove the image.

Hi gert10, what does Firefox's popup say? Can you share a screenshot of it? The following article has tips on screenshots; please cut out or blur any sensitive information before attaching it to your reply.

How do I create a screenshot of my problem?

I think I'll drop using Firefox. I can delete post via Crome too. It's only with Firefox I have this problem.

Are you using any content blocking extensions ?

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.

• make sure your extensions and filters are updated to the latest version
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Firefox shows a blueish highlighted shield icon at the left end of the location/address bar in case Tracking Protection is blocking content. You can click shield icon for more detail and possibly disable the protection. You can check in the Web Console what content is blocked.

• "3-bar" menu button or Tools -> Web Developer
• https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop