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Firefox Releases

Firefox release notes are specific to each version of the application. Select your version from the list below to see the release notes for it.

  1. 148.0.0
  2. 147.0.0
    1. 147.0.1
    2. 147.0.2
    3. 147.0.3
    4. 147.0.4
  3. 146.0.0
    1. 146.0.1
  4. 145.0.0
    1. 145.0.1
    2. 145.0.2
  5. 144.0.0
    1. 144.0.2
  6. 143.0.0
    1. 143.0.1
    2. 143.0.3
    3. 143.0.4
  7. 142.0.0
    1. 142.0.1
  8. 141.0.0
    1. 141.0.2
    2. 141.0.3
  9. 140.0.0
    1. 140.0.1
    2. 140.0.2
    3. 140.0.4
    4. 140.1.0
    5. 140.2.0
    6. 140.3.0
    7. 140.3.1
    8. 140.4.0
    9. 140.5.0
    10. 140.6.0
    11. 140.7.0
    12. 140.7.1
    13. 140.8.0
  10. 139.0.0
    1. 139.0.1
    2. 139.0.4
  11. 138.0.0
    1. 138.0.1
    2. 138.0.3
    3. 138.0.4
  12. 137.0.0
    1. 137.0.1
    2. 137.0.2
  13. 136.0.0
    1. 136.0.1
    2. 136.0.2
    3. 136.0.3
    4. 136.0.4
  14. 135.0.0
    1. 135.0.1
  15. 134.0.0
    1. 134.0.1
    2. 134.0.2
  16. 133.0.0
    1. 133.0.3
  17. 132.0.0
    1. 132.0.1
    2. 132.0.2
  18. 131.0.0
    1. 131.0.2
    2. 131.0.3
  19. 130.0.0
    1. 130.0.1
  20. 129.0.0
    1. 129.0.1
    2. 129.0.2
  21. 128.0.0
    1. 128.0.2
    2. 128.0.3
    3. 128.1.0
    4. 128.2.0
    5. 128.3.0
    6. 128.3.1
    7. 128.4.0
    8. 128.5.0
    9. 128.5.1
    10. 128.5.2
    11. 128.6.0
    12. 128.7.0
    13. 128.8.0
    14. 128.8.1
    15. 128.9.0
    16. 128.10.0
    17. 128.10.1
    18. 128.11.0
    19. 128.12.0
    20. 128.13.0
    21. 128.14.0
  22. 127.0.0
    1. 127.0.1
    2. 127.0.2
  23. 126.0.0
    1. 126.0.1
  24. 125.0.1.0
    1. 125.0.2
    2. 125.0.3
  25. 124.0.0
    1. 124.0.1
    2. 124.0.2
  26. 123.0.0
    1. 123.0.1
  27. 122.0.0
    1. 122.0.1
  28. 121.0.0
    1. 121.0.1
  29. 120.0.0
    1. 120.0.1
  30. 119.0.0
    1. 119.0.1
  31. 118.0.0
    1. 118.0.1
    2. 118.0.2
  32. 117.0.0
    1. 117.0.1
  33. 116.0.0
    1. 116.0.1
    2. 116.0.2
    3. 116.0.3
  34. 115.0.0
    1. 115.0.1
    2. 115.0.2
    3. 115.0.3
    4. 115.1.0
    5. 115.2.0
    6. 115.2.1
    7. 115.3.0
    8. 115.3.1
    9. 115.4.0
    10. 115.5.0
    11. 115.6.0
    12. 115.7.0
    13. 115.8.0
    14. 115.9.0
    15. 115.9.1
    16. 115.10.0
    17. 115.11.0
    18. 115.12.0
    19. 115.13.0
    20. 115.14.0
    21. 115.15.0
    22. 115.16.0
    23. 115.16.1
    24. 115.17.0
    25. 115.18.0
    26. 115.19.0
    27. 115.20.0
    28. 115.21.0
    29. 115.21.1
    30. 115.22.0
    31. 115.23.0
    32. 115.23.1
    33. 115.24.0
    34. 115.25.0
    35. 115.26.0
    36. 115.27.0
    37. 115.28.0
    38. 115.29.0
    39. 115.30.0
    40. 115.31.0
    41. 115.32.0
    42. 115.32.1
    43. 115.33.0
  35. 114.0.0
    1. 114.0.1
    2. 114.0.2
  36. 113.0.0
    1. 113.0.1
    2. 113.0.2
  37. 112.0.0
    1. 112.0.1
    2. 112.0.2
  38. 111.0.0
    1. 111.0.1
  39. 110.0.0
    1. 110.0.1
  40. 109.0.0
    1. 109.0.1
  41. 108.0.0
    1. 108.0.1
    2. 108.0.2
  42. 107.0.0
    1. 107.0.1
  43. 106.0.0
    1. 106.0.1
    2. 106.0.2
    3. 106.0.3
    4. 106.0.4
    5. 106.0.5
  44. 105.0.0
    1. 105.0.1
    2. 105.0.2
    3. 105.0.3
  45. 104.0.0
    1. 104.0.1
    2. 104.0.2
  46. 103.0.0
    1. 103.0.1
    2. 103.0.2
  47. 102.0.0
    1. 102.0.1
    2. 102.1.0
    3. 102.2.0
    4. 102.3.0
    5. 102.4.0
    6. 102.5.0
    7. 102.6.0
    8. 102.7.0
    9. 102.8.0
    10. 102.9.0
    11. 102.10.0
    12. 102.11.0
    13. 102.12.0
    14. 102.13.0
    15. 102.14.0
    16. 102.15.0
    17. 102.15.1
  48. 101.0.0
    1. 101.0.1
  49. 100.0.0
    1. 100.0.1
    2. 100.0.2
  50. 99.0.0
    1. 99.0.1
  51. 98.0.0
    1. 98.0.1
    2. 98.0.2
  52. 97.0.0
    1. 97.0.1
    2. 97.0.2
  53. 96.0.0
    1. 96.0.1
    2. 96.0.2
    3. 96.0.3
  54. 95.0.0
    1. 95.0.1
    2. 95.0.2
  55. 94.0.0
    1. 94.0.1
    2. 94.0.2
  56. 93.0.0
  57. 92.0.0
    1. 92.0.1
  58. 91.0.0
    1. 91.0.1
    2. 91.0.2
    3. 91.1.0
    4. 91.2.0
    5. 91.3.0
    6. 91.4.0
    7. 91.4.1
    8. 91.5.0
    9. 91.5.1
    10. 91.6.0
    11. 91.6.1
    12. 91.7.0
    13. 91.7.1
    14. 91.8.0
    15. 91.9.0
    16. 91.9.1
    17. 91.10.0
    18. 91.11.0
    19. 91.12.0
    20. 91.13.0
  59. 90.0.0
    1. 90.0.1
    2. 90.0.2
  60. 89.0.0
    1. 89.0.1
    2. 89.0.2
  61. 88.0.0
    1. 88.0.1
  62. 87.0.0
  63. 86.0.0
    1. 86.0.1
  64. 85.0.0
    1. 85.0.1
    2. 85.0.2
  65. 84.0.0
    1. 84.0.1
    2. 84.0.2
  66. 83.0.0
  67. 82.0.0
    1. 82.0.1
    2. 82.0.2
    3. 82.0.3
  68. 81.0.0
    1. 81.0.1
    2. 81.0.2
  69. 80.0.0
    1. 80.0.1
  70. 79.0.0
  71. 78.0.0
    1. 78.0.1
    2. 78.0.2
    3. 78.1.0
    4. 78.2.0
    5. 78.3.0
    6. 78.3.1
    7. 78.4.0
    8. 78.4.1
    9. 78.5.0
    10. 78.6.0
    11. 78.6.1
    12. 78.7.0
    13. 78.7.1
    14. 78.8.0
    15. 78.9.0
    16. 78.10.0
    17. 78.10.1
    18. 78.11.0
    19. 78.12.0
    20. 78.13.0
    21. 78.14.0
    22. 78.15.0
  72. 77.0.0
    1. 77.0.1
  73. 76.0.0
    1. 76.0.1
  74. 75.0.0
  75. 74.0.0
    1. 74.0.1
  76. 73.0.0
    1. 73.0.1
  77. 72.0.0
    1. 72.0.1
    2. 72.0.2
  78. 71.0.0
  79. 70.0.0
    1. 70.0.1
  80. 69.0.0
    1. 69.0.1
    2. 69.0.2
    3. 69.0.3
  81. 68.0.0
    1. 68.0.1
    2. 68.0.2
    3. 68.1.0
    4. 68.2.0
    5. 68.3.0
    6. 68.4.0
    7. 68.4.1
    8. 68.4.2
    9. 68.5.0
    10. 68.6.0
    11. 68.6.1
    12. 68.7.0
    13. 68.8.0
    14. 68.9.0
    15. 68.10.0
    16. 68.11.0
    17. 68.12.0
  82. 67.0.0
    1. 67.0.1
    2. 67.0.2
    3. 67.0.3
    4. 67.0.4
  83. 66.0.0
    1. 66.0.1
    2. 66.0.2
    3. 66.0.3
    4. 66.0.4
    5. 66.0.5
  84. 65.0.0
    1. 65.0.1
    2. 65.0.2
  85. 64.0.0
    1. 64.0.2
  86. 63.0.0
    1. 63.0.1
    2. 63.0.3
  87. 62.0.0
    1. 62.0.2
    2. 62.0.3
  88. 61.0.0
    1. 61.0.1
    2. 61.0.2
  89. 60.0.0
    1. 60.0.1
    2. 60.0.2
    3. 60.1.0
    4. 60.2.0
    5. 60.2.1
    6. 60.2.2
    7. 60.3.0
    8. 60.4.0
    9. 60.5.0
    10. 60.5.1
    11. 60.5.2
    12. 60.6.0
    13. 60.6.1
    14. 60.6.2
    15. 60.6.3
    16. 60.7.0
    17. 60.7.1
    18. 60.7.2
    19. 60.8.0
    20. 60.9.0
  90. 59.0.0
    1. 59.0.1
    2. 59.0.2
    3. 59.0.3
  91. 58.0.0
    1. 58.0.1
    2. 58.0.2
  92. 57.0.0
    1. 57.0.1
    2. 57.0.2
    3. 57.0.3
    4. 57.0.4
  93. 56.0.0
    1. 56.0.1
    2. 56.0.2
  94. 55.0.0
    1. 55.0.1
    2. 55.0.2
    3. 55.0.3
  95. 54.0.0
    1. 54.0.1
  96. 53.0.0
    1. 53.0.2
    2. 53.0.3
  97. 52.0.0
    1. 52.0.1
    2. 52.0.2
    3. 52.1.0
    4. 52.1.1
    5. 52.1.2
    6. 52.2.0
    7. 52.2.1
    8. 52.3.0
    9. 52.4.0
    10. 52.4.1
    11. 52.5.0
    12. 52.5.2
    13. 52.5.3
    14. 52.6.0
    15. 52.7.0
    16. 52.7.1
    17. 52.7.2
    18. 52.7.3
    19. 52.7.4
    20. 52.8.0
    21. 52.8.1
    22. 52.9.0
  98. 51.0.0
    1. 51.0.1
  99. 50.0.0
    1. 50.0.1
    2. 50.0.2
    3. 50.1.0
  100. 49.0.0
    1. 49.0.1
    2. 49.0.2
  101. 48.0.0
    1. 48.0.1
    2. 48.0.2
  102. 47.0.0
    1. 47.0.1
    2. 47.0.2
  103. 46.0.0
    1. 46.0.1
  104. 45.0.0
    1. 45.0.1
    2. 45.0.2
    3. 45.1.1
    4. 45.2.0
    5. 45.3.0
    6. 45.4.0
    7. 45.5.0
    8. 45.5.1
    9. 45.6.0
    10. 45.7.0
    11. 45.8.0
    12. 45.9.0
  105. 44.0.0
    1. 44.0.1
    2. 44.0.2
  106. 43.0.0
    1. 43.0.1
    2. 43.0.2
    3. 43.0.3
    4. 43.0.4
  107. 42.0.0
  108. 41.0.0
    1. 41.0.1
    2. 41.0.2
  109. 40.0.0
    1. 40.0.2
    2. 40.0.3
  110. 39.0.0
    1. 39.0.3
  111. 38.0.0
    1. 38.0.1
    2. 38.0.5
    3. 38.1.0
    4. 38.1.1
    5. 38.2.0
    6. 38.2.1
    7. 38.3.0
    8. 38.4.0
    9. 38.5.0
    10. 38.5.1
    11. 38.5.2
    12. 38.6.0
    13. 38.6.1
    14. 38.7.0
    15. 38.7.1
    16. 38.8.0
  112. 37.0.0
    1. 37.0.1
    2. 37.0.2
  113. 36.0.0
    1. 36.0.1
    2. 36.0.3
    3. 36.0.4
  114. 35.0.0
    1. 35.0.1
  115. 34.0.0
    1. 34.0.5
  116. 33.1.0
    1. 33.1.1
  117. 33.0.0
    1. 33.0.1
    2. 33.0.2
    3. 33.0.3
  118. 32.0.0
    1. 32.0.1
    2. 32.0.2
    3. 32.0.3
  119. 31.0.0
    1. 31.1.0
    2. 31.1.1
    3. 31.2.0
    4. 31.3.0
    5. 31.4.0
    6. 31.5.0
    7. 31.5.2
    8. 31.5.3
    9. 31.6.0
    10. 31.7.0
    11. 31.8.0
  120. 30.0.0
  121. 29.0.0
    1. 29.0.1
  122. 28.0.0
  123. 27.0.0
    1. 27.0.1
  124. 26.0.0
  125. 25.0.0
    1. 25.0.1
  126. 24.0.0
    1. 24.1.0
    2. 24.1.1
    3. 24.2.0
    4. 24.3.0
    5. 24.4.0
    6. 24.5.0
    7. 24.6.0
    8. 24.7.0
    9. 24.8.0
    10. 24.8.1
  127. 23.0.0
    1. 23.0.1
  128. 22.0.0
  129. 21.0.0
  130. 20.0.0
    1. 20.0.1
  131. 19.0.0
    1. 19.0.1
    2. 19.0.2
  132. 18.0.0
    1. 18.0.1
    2. 18.0.2
  133. 17.0.0
    1. 17.0.1
    2. 17.0.2
    3. 17.0.3
    4. 17.0.4
    5. 17.0.5
    6. 17.0.6
    7. 17.0.7
    8. 17.0.8
    9. 17.0.9
    10. 17.0.10
    11. 17.0.11
  134. 16.0.0
    1. 16.0.1
    2. 16.0.2
  135. 15.0.0
    1. 15.0.1
  136. 14.0.1.0
  137. 13.0.0
    1. 13.0.1
  138. 12.0.0
  139. 11.0.0
  140. 10.0.0
    1. 10.0.1
    2. 10.0.2
    3. 10.0.3
    4. 10.0.4
    5. 10.0.5
    6. 10.0.6
    7. 10.0.7
    8. 10.0.8
    9. 10.0.9
    10. 10.0.10
    11. 10.0.11
    12. 10.0.12
  141. 9.0.0
    1. 9.0.1
  142. 8.0.0
    1. 8.0.1
  143. 7.0.0
    1. 7.0.1
  144. 6.0.0
    1. 6.0.1
    2. 6.0.2
  145. 5.0.0
    1. 5.0.1
  146. 4.0.0
    1. 4.0.1
  147. 3.6.0
    1. 3.6.2
    2. 3.6.3
    3. 3.6.4
    4. 3.6.6
    5. 3.6.7
    6. 3.6.8
    7. 3.6.9
    8. 3.6.10
    9. 3.6.11
    10. 3.6.12
    11. 3.6.13
    12. 3.6.14
    13. 3.6.15
    14. 3.6.16
    15. 3.6.17
    16. 3.6.18
    17. 3.6.19
    18. 3.6.20
    19. 3.6.21
    20. 3.6.22
    21. 3.6.23
    22. 3.6.24
    23. 3.6.25
    24. 3.6.26
    25. 3.6.27
    26. 3.6.28
  148. 3.5.0
    1. 3.5.1
    2. 3.5.2
    3. 3.5.3
    4. 3.5.4
    5. 3.5.5
    6. 3.5.6
    7. 3.5.7
    8. 3.5.8
    9. 3.5.9
    10. 3.5.10
    11. 3.5.11
    12. 3.5.12
    13. 3.5.13
    14. 3.5.14
    15. 3.5.15
    16. 3.5.16
    17. 3.5.17
    18. 3.5.18
    19. 3.5.19
  149. 3.0.0
    1. 3.0.1
    2. 3.0.2
    3. 3.0.3
    4. 3.0.4
    5. 3.0.5
    6. 3.0.6
    7. 3.0.7
    8. 3.0.8
    9. 3.0.9
    10. 3.0.10
    11. 3.0.11
    12. 3.0.12
    13. 3.0.13
    14. 3.0.14
    15. 3.0.15
    16. 3.0.16
    17. 3.0.17
    18. 3.0.18
    19. 3.0.19
  150. 2.0.0
    1. 2.0.0.1
    2. 2.0.0.2
    3. 2.0.0.3
    4. 2.0.0.4
    5. 2.0.0.5
    6. 2.0.0.6
    7. 2.0.0.7
    8. 2.0.0.8
    9. 2.0.0.9
    10. 2.0.0.10
    11. 2.0.0.11
    12. 2.0.0.12
    13. 2.0.0.13
    14. 2.0.0.14
    15. 2.0.0.15
    16. 2.0.0.16
    17. 2.0.0.17
    18. 2.0.0.18
    19. 2.0.0.19
    20. 2.0.0.20
  151. 1.5.0
    1. 1.5.0.1
    2. 1.5.0.2
    3. 1.5.0.3
    4. 1.5.0.4
    5. 1.5.0.5
    6. 1.5.0.6
    7. 1.5.0.7
    8. 1.5.0.8
    9. 1.5.0.9
    10. 1.5.0.10
    11. 1.5.0.11
    12. 1.5.0.12
  152. 1.0.0
    1. 1.0.1
    2. 1.0.2
    3. 1.0.3
    4. 1.0.4
    5. 1.0.5
    6. 1.0.6
    7. 1.0.7
    8. 1.0.8
  153. 0.1.0
    1. 0.2
    2. 0.3
    3. 0.4
    4. 0.5
    5. 0.6
    6. 0.6.1
    7. 0.7
    8. 0.7.1
    9. 0.8
    10. 0.9
    11. 0.9.1/0.9.2
    12. 0.9.3
    13. 1.0 Preview Release