Not a phpBB extension but many of my board members use Create Link - Chrome Web Store
or the Firefox addon Make Link (I don't use Firefox, so the actual addon name may have changed).
Generally details about these extensions/add-ons get posted somewhere on the board as 'useful tips, pro tips, etc.' To use it, while reading a topic (or post), you select some text, i.e. the topic title, right click, select Create link and then select the BBCode URL format, which I've coded as
, then paste it. It is way simpler than it sounds, I can do it much faster than it took to type the instructions.
Normal people… believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet. – Scott Adams