In WordPress 4.2, the link title field from the popup box has been replaced with link text field. Link title attribute text shown when the user hovers over to the link.
But these days when smartphone, tablets and other mobile devices are more active, nobody cares about the link title attribute because it is not seen by most users.
Link title only shows up on desktop and laptops, some people thinks that it is useful for SEO and some only use it for writing a brief text for the link so that their visitors can know where they are going to.
Whatsoever may be the reason, if you are also one of the WordPress user wanting link title field back on ADD LINK thickbox then Restore Link Title Field plugin is for you. This is the new WordPress plugin that simply adds back the missing “title” field in the Insert/Edit URL box in WordPress 4.2+ versions.
Start by installing ‘Restore Link Title Field’ plugin in WordPress
Upon activation, visit your admin area dashboard Posts -> Add New screen or open any old post/post type to edit.
Now use ‘Insert/Edit link’ TinyMCE button present in your visual editor or press ALT+SHIFT+A and you will be noticing that ‘Link Title’ field is back.