If you're seeing that either the share text, image or link of your Share bar's "Facebook Share" button aren't correct you may need to run the URL through Facebook's debugger tool.
2 Enter the URL of the page where the share information is wrong and click Debug.
3 Click the Scrape Again button.
4 This should update the Link Preview section with the correct share information.
Pro tip: If after scraping the preview still doesn't look correct, check out our Share & Open Graph article, which explains how Share determines which text/link/images to share.