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

Whew! That's a lot of Firefoxen!