Download of ClickToFlash 3.1 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is included in Internet & Network Tools. The actual developer of this free software for Mac is ClickToFlash Developers. The most popular versions of the software are 1.6 and 1.5.
From the developer:
ClickToFlash is a highly customizable extension that prevents Safari from launching the Flash plug-in automatically, resulting in faster browsing, reduced fan usage, and increased battery life. It replaces every Flash object by an unobtrusive placeholder that can be clicked to load the Flash content. Further, it can replace many Flash-based media players by Safari's native HTML5 media player.
You may want to check out more software for Mac, such as Delete Flash Cookies, Subio or MiniSafari, which might be similar to ClickToFlash.