My company fired me and then put an abscond

We would like to inform you that even your question is not clear enough, you can't leave the country if there is an absconding report against you.
First, you have to review the Human Resources Ministry to provide evidence that the absconding is not right or negotiate with the employer to cancel the report.
If you mean another question, then ask in detail and we will answer you with pleasure.
In case the company terminates work contracts without a legal justification, then the worker can file a complaint at the Ministry of Human Resources and Emiratisation, which in turn will transfer the complaint to the labor court because they do not have the authority to handle that complaint for workers of the free zones.
Also, a worker who is subject to an arbitrary termination of an employment contract can demand compensation for the this terminatio, in addition to end-of-service benefits that the worker did not receive before.
The UAE Labor Law stipulates:
Article 123
1. Where a worker is arbitrarily dismissed, the competent court may order the employer to pay him a compensation, to be assessed by the court with due regard to the nature of the work, the extent of damage sustained by the worker and his period of service, and after investigating the work circumstances, provided that such compensation shall in no case exceed the worker's wage for three months, calculated on the basis of his last wage.
2. The provisions of the preceding paragraph shall not prejudice the worker's right to the gratuity he is entitled to and the compensation in lieu of notice provided for in this law.