Aside from being fired because of outright discrimination, usually when a person is fired from a job, it is oftentimes his/her fault. He/she instigated actions which ultimately result in his/her termination. Also, employers give employees ample opportunity to improve work related issues before the final blow of termination.
That being said. Being fired has a negative connotation although there is somewhat more acceptance of the former. People who are fired are considered to be problematic by prospective employers. Such employers view the fired employee as damaged goods. It is widely thought by prospective employers that if a person is fired, something h/she has done was substandard in one way or another. H/she is viewed as tarnished....blemished.....tainted.
Most prospective employers want an employee with a perfect or near perfect record because such an employee is deemed to be a capable employee. This employee is furthermore believed not to create havoc in the workplace. H/she is viewed to be an asset to the workplace and that is what most prospective employers want.
Most prospective employers are apprehensive about hiring a person who has been fired. First of all h/she is seen to have some underlying negative issues. If h/she is hired, h/she is deemed to be more of a liability to the company/corporation than an asset. H/she may need constant supervision because h/she is not thought to be a proficient &/or trustworthy employee. Most prospective employers think long & hard before hiring a fired employee because it is argued that h/she will cause discord in the workplace. H/she is even thought to decrease the value of the particular workplace.