Basing benefits on what taxpayers have already paid into the system is "a principle deeply felt by the British people," according to Ed Miliband.
The Labour leader will say:
It is a principle deeply felt by the British people that people should get something back for all they have put in and not get something for nothing.
The next Labour government will change the way JSA operates to make sure that someone who has been working for years and years and paying in to the system gets more help if they lose their job than someone who has been working for just a couple of years.
And we will pay for it not by spending more money in the social security system overall, but by extending the length of time people need to have worked to qualify.
More top news
A Labrador had a miraculous escape after surviving a 150-foot plunge down a cliff on Christmas Day.
Passengers, including a pregnant woman, say they have been stranded since 4pm yesterday.
The boxer said it was the "least he could do" and even donated the £30,000 shorts he wore in his last fight against Devon Alexander.