Joomla Extension Installation Error "There was an error uploading this file to the server."

Installing extension on Joomla and getting error  "There was an error uploading this file to the server."

There are few things which you need to check and fix.
Check the following

1. Check folder permission on tmp folder. Its should have writable permission.
2. Change following settings in php configuration

max_executions_time = 60

upload_max_filesize = 10M

post_max_size = 10M

memory_limit = 100M

display_errors = 0

register_globals = 0

Set the size limit according to your need and extension size.