Get a hot glue gun, glue the top, then inject hot glue into the bottom inside seam. That will hold, for awhile anyways.
you need to replace the window regulator
Your window may not stay up due to a faulty window regulator, worn-out window tracks, or a broken window balance. These components help support and hold the window in place, so if they are damaged or worn, the window may not stay up properly.
The window does not stay up because the mechanism that holds it in place is likely broken or worn out. This can cause the window to fall down instead of staying up.
The window may not stay up due to a faulty window regulator or a broken window mechanism. It could also be caused by worn-out window seals or a misaligned window track. These issues prevent the window from staying in the raised position.
The purpose of the window crank handle in a car is to manually roll up or down the window.
To operate a window crank in a car, turn the handle clockwise to roll the window up and counterclockwise to roll it down. Make sure to hold the handle firmly while turning to avoid slipping.
Just roll it up If the the car has automatic car window abd wont pull up then the regulator of the car window is bad or is off-track. You will have to get the regulator fixed. It usually costs up to $50 or so.. from a good mechanic.
What I have done in the past is open the door, place one hand on the outside of the glass then take the other hand and place it on the inside of the glass and attempt to push it back to the top, if the window is all the way down then the door panel has to be removed. once you get the window up it will stay up.
you will have to replace the window regulator.
Check out the Instructables website and type in "Propeller-Powered Car" on the search window. The instructions for it will come up along with a video.
Step 1, get some car window grease from a local checker's auto store. Step 2, slather some grease very thinly on the window that is having problems, make sure you spread the grease on the outside part of the car. Then make window go down and back up. Scrape off excess grease from car door.
spray silicone spray along the window guides. DO NOT SPPRAY WD40.