welcome to just answer. My name isXXXXX and i will do my best to answer your question
Your tablet model runs android jellybean operating system.
Can you please clarify what tabs are you refering to?
do you mean browser tabs, in this case what browser are you using?
Are you getting a message that you " reached tab limit and can't download further"
If you're using Chrome, scroll up and the top bar shows. Tap the box with a number in it next to the address field. Tap the X in the right corner to start closing
if you are using a different browser let me know so i can guide your