Fast way to download a video from an URL Is there an easy way to download a video from an URL to the device or to your Dropbox?

The only way I have managed to do that is using Mercury: manually copying the URL, going to the download manager and then pasting the URL there. Then, from Mercury I can save it to my camera roll or upload it to Dropbox.

Is there an easier way of doing this? Any way that doesn't involve copy/paste, either using Mercury or any other browse?
In addition to fiddling around in Mercury Browser:

I found a collection of ugly-looking spammy apps: Video Downloader. I tried the purple one by Appsneon, it seems to work fine.

It shows a download button on iOS video player overlay, when browsing through the app. This is more convenient than Mercury Browser's approach. I wish mainstream browsers would offer this option as well.