Technology acts a an enabler and a harm to autonomy. It is also not the only source of this issue. Google tracks your search history to aim advertisements at you to best get your money. On the flip side blog sites like reddit or imgur allow you to post your opinions anonymously to allow you not to worry about the opinions of others. Which brings me to the other culprit society's norms.
Technology definitely harms our autonomy at some points. Websites like Facebook and Google track your usage data. This allows them to pick and choose advertisements in order to increase the likelihood that you buy the advertised product. Cameras have also been placed everywhere and allowed government agencies to watch everything we do. Only recently in Atlanta street cameras at red lights were taken down due to the infringement on personal privacy.
Technology can aid our autonomy however. The internet acts as a wonderful anonymous medium. Blog sites allow users to post content without having to attach their name to their opinions. Reddit enforces a rule that its users aren't allowed to display information that would reveal who they are. Whether or not this anonymity is a good thing in a General sense is uo to debate, but it definitely protects privacy. Technology also allows people with disenting opinions to voice them more than ever. In just 2011 the government added a portion of their website which allows people to submit e petitions to their lawmakers. This makes it much easier to voice discontent with the current system.
Finally technology isn't the only culprit in the case of autonomy removal. Society is one of the main contributors. Social media sites have been said to harm autonomy for individuals. It is said that people in certain businesses need to watch what they say for fear of being fired from their job. This isn't a product of the technology but rather a product of society. If society didn't asociate the opinions of someone with their personal worth then the things posted on social media wouldn't be a problem. There would be no need to censor yourself without the opinions of others.
At the end of the day your autonomy is yours to decide what to do with. It can be increased or decreased depending on how you use technology. It is a decision that you have to make as an individual and not something that is made for you.