Is it possible for firefighters to have breast implants?

Yes, it is possible for firefighters to undergo breast augmentation surgery.  After a period of rest you will be  able to return to your relatively strenuous occupation; your plastic surgeon will guide you when it comes to gradual resumption of activity. Key will be careful selection of plastic surgeon and careful communication of your goals. Best wishes.

Yes! I have several in my practice, as well as police officers, semi drivers, electric lineswomen, and just about any profession you can think of. You do need to heal properly before you engage in strenuous activities, but if you resume activity properly (gradually, over weeks), you can assume full duties in 6 weeks.
Do NOT believe there is some "special procedure" or "unique surgeon" who can give you "overnight recovery," 24-hour recovery," or "flash recovery," to name a few. Careful surgery, meticulous hemostasis, and attention to technical details are what make healing as rapid as possible, but EVERY woman still needs to heal, and there are no "speed-me-up" details.
Make sure you see ABPS-certified plastic surgeons, ASAPS members, who are experienced and do lots of breast surgery (over 100 cases per year). Also, beware those surgeons who claim they do 500 breast augmentations per year; that's as preposterous as the "overnight recovery!" Even if all I did was breast surgery, I would probably not want to do that many. Around 200 per year is plenty, especially with all the other cosmetic procedures a busy aesthetic plastic surgeon performs. Best wishes! Dr. Tholen

I understand your concern and I appreciate the important job you do for your community.
Most plastic surgeons have probably done breast augmentations on women whose job descriptions include physically demanding activities, ie,  fire fighters, law enforcement officers and body builder competitors. These people have done well, especially if they follow instructions, which means no heavy physical activity for 6 weeks. Some of our patients are allowed to go back to light duty one week after surgery, so you might want to explore if this option is available to you.
So the answer to your question is that yes you should be able to return to your important job as a fire fighter. 
Again, thank you for your service to your community and Good Luck!