Wikidata for Web | Wikidata:Tools

"Wikidata for Web (Q99894727) (previously known as Wikidata for Firefox) is a browser extension for Mozilla Firefox and Chromium that displays Data from Wikidata on various websites and also allows extraction of data from these websites. The source code is available on Github....

It is also possible to extract data from links found in the current page and save them in wikidata with appropriate reference statements....   

https://chrome.google.com/webstore/detail/wikidata/iijkiilckldlddidhaomggfadfafpdfd

https://addons.mozilla.org/en-US/firefox/addon/wikidata/