firefoxfunction keysgoogle-chromeinternet explorerkeyboard shortcuts
When I try to clear the cache and refresh the page via Ctrl+F5 (or just F5) I get the prompt Type the Internet address of a document, and Internet Explorer will open it for you with a drop down list in Internet Explorer. When I try F5 in Chrome and Firefox it opens the "Open file" dialog box.
When I try to F12 for Dev tools in Internet Explorer, Chrome & Firefox it opens up the print dialog box.
Why is this happening and what can I do to revert it back to the way it was?
Push F12 or Ctrl+Shift+J to "Open Developer Tools" on Windows (On Mac: Cmd+Opt+I) then you can right click on the refresh icon and select 'Empty Cache and Hard Reload'
See: https://stackoverflow.com/questions/12633425/chrome-browser-reload-options-new-feature
The documentation says:
Reloads your current page, ignoring cached content.
Although some have reported this works, others have said it does not work correctly
Your other options are:
JavaScript Console
The JavaScript Console is available in two modes within Chrome DevTools: the primary Console tab, or as a split-view you can display while on another tab (such as Elements or Sources).
To open the Console tab, do one of the following:
Use the keyboard shortcut Command - Option - J (Mac) or Control -Shift -J (Windows/Linux). Select View > Developer > JavaScript Console.
F12 doesn't appear to be mentioned here but will open this console on Windows as well.
Incognito window
Another interesting option is to open a new incognito window (Ctrl+Shift+N On Mac: ⌘ + Shift + N.). This window won't use any stored cookies, cached content, or DNS resolutions, so you can test stuff in it without slowing your normal browsing down by dumping the cache. This is what I almost always do instead of clearing the cache. https://support.google.com/chrome/answer/95464
Disable cache
Open Chrome Developer Tools (F12, Mac: ⌘+⌥+I). Click the settings icon (a gear in the bottom right corner). Check "Disable cache". Now when you browse with your Developer tools open caching is disabled.
Click&Clean
Finally there is also the option of the Click&Clean extension
Best Answer
You have a keyboard with an F-Lock key. The function lock is currently on. "Open file" and "Print" are the meanings of F5 and F12 when function lock is on.
So just turn it off.
Further reading
Q894513 - Resolve unexpected Function (F1 - F12) or other special key behavior. Microsoft KnowledgeBase.