SUMO community discussions

Firefox 139 mobile release (Android & iOS) - Contributor thread

  1. Important note: If you're a user looking for product support, please post in the support forum instead.

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    Hey all,

    Firefox 139 just dropped yesterday and as usual, let's use this thread to collect feedback and trending issues related to Firefox mobile (Android or iOS) in this version.

    To find out more information about this release, please check out our release wiki for Firefox 139.

    For existing issues/known feedback, please check out the following Trello boards:

    Thanks, everybody!

    '''Important note: If you're a user looking for product support, please post in the support forum instead.''' --- Hey all, Firefox 139 just dropped yesterday and as usual, let's use this thread to collect feedback and trending issues related to Firefox mobile (Android or iOS) in this version. To find out more information about this release, please check out our release wiki for [https://wiki.mozilla.org/Support/Firefox138 Firefox 139]. For existing issues/known feedback, please check out the following Trello boards: * [https://trello.com/b/5m7oMi5b/firefox-bug-board-2025 Firefox bug board] * [https://trello.com/b/i4XicqfP/firefox-feedback-board-2025 Firefox feedback board] Thanks, everybody!
  2. Hi folks,

    Just a note that we received several questions about Private tabs screen lock on Firefox for Android like the following:

    When you see similar question, please let them know that they can disable the lock by going to Settings - Private browsing and disable the "Use screen lock to hide tabs in private browsing" option. I also included this info in the release wiki for v139.

    Hi folks, Just a note that we received several questions about Private tabs screen lock on Firefox for Android like the following: * [/questions/1510806#answer-1742586] * [/questions/1510428#answer-1742587] * [/questions/1509758#answer-1742588] * [/questions/1509528] When you see similar question, please let them know that they can disable the lock by going to Settings - Private browsing and disable the "Use screen lock to hide tabs in private browsing" option. I also included this info in the [https://wiki.mozilla.org/Support/Firefox139#Known%2FTrending_issues%28s%29 release wiki for v139].