| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| firefly cancelled by fox 11 episodes | 1.89 | 1 | 3498 | 96 |
| when was firefly cancelled | 0.03 | 0.2 | 6704 | 72 |
| why did fox cancel firefly | 1.32 | 0.9 | 5325 | 54 |
| why was firefly cancelled so quickly | 0.65 | 0.7 | 548 | 73 |
| why was firefly tv show canceled | 1.36 | 0.5 | 8601 | 72 |
| firefly tv show episodes | 1.77 | 0.6 | 2315 | 86 |
| firefly tv series episodes | 0.3 | 0.9 | 7031 | 6 |
| firefly tv show full episodes | 0.94 | 0.9 | 8758 | 80 |
| why did they cancel firefly | 0.17 | 0.7 | 6752 | 32 |
| firefly season 1 episode 11 | 0.12 | 0.2 | 3701 | 4 |
| firefly list of episodes | 1.42 | 0.3 | 5460 | 56 |
| firefly season 1 episodes | 0.37 | 0.6 | 79 | 72 |
| firefly seasons and episodes | 1.14 | 0.7 | 686 | 70 |
| firefly full episodes on youtube | 1.02 | 0.2 | 5304 | 37 |
| firefly tv series return | 0.91 | 0.6 | 6646 | 97 |
| why wasn't firefly renewed | 0.41 | 0.7 | 3992 | 61 |
| firefly tv show coming back | 0.82 | 0.3 | 5165 | 43 |
| firefly season 1 episode 9 | 1.03 | 1 | 9841 | 77 |
| firefly the tv show | 1.27 | 0.1 | 3011 | 23 |
| firefly tv show reboot | 1.03 | 1 | 8245 | 75 |
| firefly the tv series | 0.26 | 0.6 | 9464 | 55 |
| firefly tv series reboot | 0.6 | 0.5 | 7891 | 8 |
