Since the update to Firefox 44.0, my address bar has been showing a "ghost" forward-slash character, "/". The "ghost" character is gray in color, matching the color of most of the actual URL. Firefox shows this overlaid atop the first character of every URL at every website. It also overlays the beginning of the "Search or enter address" message that is displayed if I select the URL text and press Delete to clear the text. It cannot be selected with the cursor, nor does it appear in the clipboard if I type "Ctrl-A" and "Ctrl-C" within the address bar. Note that it does not interfere with the operation of Firefox in any way. It's just a visual glitch. I am attaching a snippet of a screenshot to illustrate the problem. This is Firefox 44.0 on Windows 7 Home Premium 64-bit.