How to View Older Facebook Messages without Scrolling

Go to this page, https://m.facebook.com/messages/ (This is mobile version of Facebook), and click on your friend's chat that you want to view. If you don't see your friend chat history, you can view more chat history by "See older messages" link. I assumed you have chosen a friend name "A".

Once you are in the chat history of your friend "A", right click on "See Older Messages" and click on "Copy Link Location". Paste that link to any safe place, we need it later.

  

  Now, go to this page, https://www.facebook.com/messages/ (This is desktop version of Facebook), and go to the chat history of the same friend "A". Now, while scrolling up, have a look on the top of the chat history number.

You have to view that no. faster otherwise it will finish to load or you can disconnect your internet connection before scrolling up. Once you get that no. proceed the next step.

 In step 2, take a look on the copied code, you will find a short piece of code inside copied code says "&start=5". The value should be 1,2,3,.....
Now, remove that no. and replace it by "Loading older messages" no. that you have from step 3.
As per preview, I should replace it by "&start=6983"

 Once you edit it as per your data, copy the whole code and paste it to your browser and hit enter. You will still see "See Older Messages", but if you look over the date of the current messages BANG! you are very close. At-most 10 clicks are required on "See Older Messages" for the goal.