To add the undo post option
you’ll need to open the web version of Facebook in Chrome.
After which
you will need to do the steps listed below:

*.Open a new tab in Chrome then go to the Web Store.
Download and install the “Facebook Undo” browser extension.

*.Once installed, reload Facebook.

*.Write something on the status update box.

*.Once you’re done
click “Post”. The “Undo” button will appear and you will be given five seconds to undo your post.

*.If you do not want your post to get published, click “Undo” before the five-second grace period ends.

*.If you want to proceed
just wait for five seconds and your post will be automatically posted to your timeline.

*.No need to click the “Post” button all over again.

That’s it! You’re done.

Link: Facebook Undo
https://chrome.google.com/webstore/detai...cjnafhiani

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