When not to worry you still have few options that you can recover or recreate your deleted Look Back video of Facebook profile using a few browser tricks.
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Updated - How to Edit Facebook Look back Video
Now first of all we are going to show you the trick for 3 browsers. It will support on Mozilla Firefox, Google Chrome and Internet Explorer. If you are using Safari you can just follow any of the steps it will be similar.
Remember: if you already deleted your browser cache/history, the tricks won't work for you.
Step by Step Guide to Recover Deleted Look Back Video
Step 1: On your address or URL bar type about:cache if nothing happens then you will need to add an extension to you Firefox browser from here
Step 2: Once you have added the extension to your browser, again type about:cache on your browser address/URL bar.
Step 3: Now you will see Disk cache device (2nd category) click on list cache entries and press CTRL+F to start search.
Step 5: Go through the ones that match and ONLY click on the links that are HUGE, like over 1 million bytes. I say ONLY, because it can be a long process....once you think you've found it, click the link in the page that opens and your video should appear. Now right click on the video and start downloading it. After download is complete you can upload it to your Facebook.
Step 6: Follow up for step 5 after clicking the link Here you will be on a new page cache entry information and will see a Key the address of the video so just right click on it and Save Target As or Download Using IDM as per as your download methods.
Google ChromeStep 1: Type/Copy chrome://view-http-cache on your Google Chrome Address/URL bar and press Enter.
Step 2: Now you will see a lot of links appearing on the page now press CTRL+F that will open the search box and type/copy lookback on your search box and press Enter.
Step 3:Now look for the link that look similar with https://lookbackvideo7-a.akamaihd.net and there will be a .mp4? format end line find it and click on it. Look the screenshot below as example:
Step 3: 4. After you clicked the link, you will see on your window a bunch of text with white background. Ignore that. LOOK AT YOUR ADDRESS/URL BAR. You should be able to see something like chrome://view-http-cache/https://lookbackvideo7-a.akamaihd.net a long text. In the long string of url, DELETE THIS PART: chrome://view-http-cache/ then press enter.Easy methods to download facebook videos
Step 1: Go to internet explorer and click on the gear icon and select Internet Option
Step 2: Now click on Settings on your Internet Options and then select View
If any of the trick is not working for you let us know via comments we will share more option to recover your deleted look back video.