When opened this morning, message showed updates to Firefox browser were being installed. Upon completion, all of the font size were reduced 3-4 clicks using the "zoom in/+" key... ie, whenever a new page on any site (including my web based email) opens, to get the type/font size back to a readable point it was set to previous to the update, I need to zoom in 3-4 clicks. Why did this change and how do I get the size to stay as the default size.

Also, the "show my windows and tabs from last time" option at startup in the pull down menu is not highlighted to check. This was checked prior to this update. What happened?