In less than 2 hours he published an event entitled: 25 يناير على التعذيب والفساد والظلم والبطالة [January 25: Revolution against Torture, Corruption, Unemployment and Injustice].
Mostafa himself joined the movement's youth wing but left the organization in 2005, when he felt he "no longer identified with its platform and ideology".
[9] Mostafa was arrested three times: in 2000 before the parliamentary elections; in 2003 for his involvement in the protests against the Iraq war; in January 2010, after the Nag Hammadi massacre.
He had gone with other delegates to Nag` Hammadi to offer his condolences to the families of those who were shot to death outside a church at the time of the Christmas mass.
[7] In 2010, he became coordinator of ElBaradei's National Association for Change Campaign,[8] "a coalition of opposition figures and groups formed in 2010 to demand democratic reforms as well as free and fair presidential elections in which independent candidates that were not handpicked by the Mubarak regime could run.".
Mostafa recounted that he was standing alongside a young man in front of the Egyptian Museum, which is very close to Tahrir Square.
"[10] In June 2011,[11] Mostafa cofounded al-Adl Party, which "seeks to carve for itself a centrist position in Egypt’s post-revolution political landscape away from the ideological spats dividing secular and Islamist trends.
"[14] He won an honorary award from the United Nations Human Rights Council in Beirut in 2010 for his blog Ana Ma`ahum (I am with them).
Instead, Alnagar - together with another 17 in addition to the toppled MB president Mohammed Morsi, were sentenced to three years in prison on 30 December 2017 for ′insulting the judiciary system .
Naggar has been missing since the 28th of September 2018.Last contact had been made with him that day, however since his disappearance government officials have not given any precise information to where he is kept or might have been taken or killed.