adobe-flashbrowserbrowser-addonsflash
I often use applications made in Flash. Due to my high resolution the standard browser zoom means that everything in these applications is too small.
Using the default zoom function in all major browsers I have tested does not zoom the Flash content, so that does not help.
My best solution at the moment is to keep changing the screen resolution. This is, however, tedious, so my question is whether there is a better solution?
I implemented the solution you described on Mac a few months ago. It did prevent the tracking, but it prevented quite a few more complicated Flash applications (anything with persistence between sessions, most obviously Flash games with progress tracking) from operating correctly, or at all. Eventually I got tired of troubleshooting and removed the folder locks.
My interim solution is using a Flash blocker. As I only load Flash objects for sites I trust (such as YouTube) the privacy concerns are mitigated, if not removed.
You can do it with Firefox and 2 extensions: Web Developer and FireShot.
Once both extensions are installed, go to Tools - Web Developer - Resize - Edit Resize Dimensions... .
Add a new size, 4000 x 3000. check "Resize the viewport" if you want only the page content to be 4000x3000. If you don't check it, the complete window of Firefox (with toolbars, menu, ...) will be set to this dimension.
Once at the correct size, go to Tools - FireShot - Capture Entire Page and ... . Select an action, like Save for instance. It will save the page content that has been set by Web Developer to the desired size.
Best Answer
Sometimes you can right click on the Flash region and click "Zoom In". It only works for Flash files that has not disabled the options in the right-click menu. Also, the zoom will be limited to the Flash frame. If your browser has developer tools, you can open it and manually tweak the Flash embed's size.