Firefox release notes for developers

Below you'll find links to the developer release notes for every Firefox release. These lovingly-crafted notes provide details on what features and APIs were added and improved and what bugs were eliminated in each version of Firefox. All written to give developers like you the information they need most. You're welcome.

1. Firefox 161 (Nightly)
2. Firefox 160 (Beta)
3. Firefox 159 (Stable)
4. Firefox 158
5. Firefox 157
6. Firefox 156
7. Firefox 155
8. Firefox 154
9. Firefox 153
10. Firefox 152
11. Firefox 151
12. Firefox 150
13. Firefox 149
14. Firefox 148
15. Firefox 147
16. Firefox 146
17. Firefox 145
18. Firefox 144
19. Firefox 143
20. Firefox 142
21. Firefox 141
22. Firefox 140
23. Firefox 139
24. Firefox 138
25. Firefox 137
26. Firefox 136
27. Firefox 135
28. Firefox 134
29. Firefox 133
30. Firefox 132
31. Firefox 131
32. Firefox 130
33. Firefox 129
34. Firefox 128
35. Firefox 127
36. Firefox 126
37. Firefox 125
38. Firefox 124
39. Firefox 123
40. Firefox 122
41. Firefox 121
42. Firefox 120
43. Firefox 119
44. Firefox 118
45. Firefox 117
46. Firefox 116
47. Firefox 115
48. Firefox 114
49. Firefox 113
50. Firefox 112
51. Firefox 111
52. Firefox 110
53. Firefox 109
54. Firefox 108
55. Firefox 107
56. Firefox 106
57. Firefox 105
58. Firefox 104
59. Firefox 103
60. Firefox 102
61. Firefox 101
62. Firefox 100
63. Firefox 99
64. Firefox 98
65. Firefox 97
66. Firefox 96
67. Firefox 95
68. Firefox 94
69. Firefox 93
70. Firefox 92
71. Firefox 91
72. Firefox 90
73. Firefox 89
74. Firefox 88
75. Firefox 87
76. Firefox 86
77. Firefox 85
78. Firefox 84
79. Firefox 83
80. Firefox 82
81. Firefox 81
82. Firefox 80
83. Firefox 79
84. Firefox 78
85. Firefox 77
86. Firefox 76
87. Firefox 75
88. Firefox 74
89. Firefox 73
90. Firefox 72
91. Firefox 71
92. Firefox 70
93. Firefox 69
94. Firefox 68
95. Firefox 67
96. Firefox 66
97. Firefox 65
98. Firefox 64
99. Firefox 63
100. Firefox 62
101. Firefox 61
102. Firefox 60
103. Firefox 59
104. Firefox 58
105. Firefox 57
106. Firefox 56
107. Firefox 55
108. Firefox 54
109. Firefox 53
110. Firefox 52
111. Firefox 51
112. Firefox 50
113. Firefox 49
114. Firefox 48
115. Firefox 47
116. Firefox 46
117. Firefox 45
118. Firefox 44
119. Firefox 43
120. Firefox 42
121. Firefox 41
122. Firefox 40
123. Firefox 39
124. Firefox 38
125. Firefox 37
126. Firefox 36
127. Firefox 35
128. Firefox 34
129. Firefox 33
130. Firefox 32
131. Firefox 31
132. Firefox 30
133. Firefox 29
134. Firefox 28
135. Firefox 27
136. Firefox 26
137. Firefox 25
138. Firefox 24
139. Firefox 23
140. Firefox 22
141. Firefox 21
142. Firefox 20
143. Firefox 19
144. Firefox 18
145. Firefox 17
146. Firefox 16
147. Firefox 15
148. Firefox 14
149. Firefox 13
150. Firefox 12
151. Firefox 11
152. Firefox 10
153. Firefox 9
154. Firefox 8
155. Firefox 7
156. Firefox 6
157. Firefox 5
158. Firefox 4
159. Firefox 3.6
160. Firefox 3.5
161. Firefox 3
162. Firefox 2
163. Firefox 1.5

Whew! That's a lot of Firefoxen!