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UI shifts slightly downward when tapping the private browsing icon in Firefox for Android on Nothing Phone (1).

I found a UI bug in Firefox for Android on Nothing Phone (1). Device: Nothing Phone (1) Android version: 15 Firefox version: 150.0.1 (Build #2016157687), 094f3362dcbc efd… (read more)

I found a UI bug in Firefox for Android on Nothing Phone (1).

Device: Nothing Phone (1) Android version: 15 Firefox version: 150.0.1 (Build #2016157687), 094f3362dcbc efdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1

Steps to reproduce: 1. Open Firefox on Android. 2. Tap the private browsing icon/tab switcher. 3. Observe the screen layout.

Expected result: The UI should remain stable without moving.

Actual result: The whole interface slightly shifts downward after pressing the private browsing icon.

The issue is visible in the attached screenshots.

Open 1

Android window size shrinks when swapping between private and regular tabs

Whenever you go from regular tabs to your private ones, or private to regular tabs, the top and bottom margins both grow by about the width of the URL bar. Rotating the p… (read more)

Whenever you go from regular tabs to your private ones, or private to regular tabs, the top and bottom margins both grow by about the width of the URL bar. Rotating the phone sideways actually makes it worse, adding bars on the side in addition to the top and bottom ones. The bottom bar will go above the keyboard when you're typing, and so far the only way to get rid of it is restarting the app. It's been affecting me for about a month now; I've attached some examples of how it looks before and after below, and here's some more info about my phone:

Firefox Version: 150.0.1 (Build #2016157687) OS: Android 15 Model: moto g stylus 5G - 2024 Extensions: uBlock Origin

Open 8

Collections missing from Homepage despite being active in "Select collection" menu

I am experiencing an issue where my saved Collections are not appearing on the Firefox Homepage (New Tab page), even though they clearly exist in the system. The Issue: W… (read more)

I am experiencing an issue where my saved Collections are not appearing on the Firefox Homepage (New Tab page), even though they clearly exist in the system.

The Issue: When I attempt to add a page to a collection, the "Select collection" overlay correctly shows my existing categories: Read Later, News, and Gemini.

The Discrepancy: When I return to the Firefox Homepage, the Collections section is completely missing. Only "Shortcuts" are visible.

Troubleshooting done: I have verified that I have active tabs saved within these collections (as seen in the attached screenshots), but the homepage remains empty below the shortcuts.

Device Specifications:

  • Firefox Version: 150.0.1 (Build #2016157687)
  • Build ID: 094f3362dcbcefdce34f05b355607cdce06a4ef4
  • GV: 150.0.1-20260427013024
  • AS: 150.0.1
  • OS: Android 16

Moderator note: This question has been edited to specify values in the "Firefox version" and "Operating system" fields based on the info above.

Open 10

Is it normal that cookies with sameSite strict are not sent with a window.reload on android

When going to immich public proxy (as an example) from a link from another app, the Set-Cookie header is set but when performing the window.reload the cookies are not sen… (read more)

When going to immich public proxy (as an example) from a link from another app, the Set-Cookie header is set but when performing the window.reload the cookies are not sent within the request.

See code : https://github.com/alangrainger/immich-public-proxy/blob/main/app/views/password.ejs#L49-L69

Reproduction steps : - have a link inside an app - click link - on site perform a request that returns a Set-Cookie header with sameSite=strict - perform a window.reload - check that cookie isn't sent

The same steps where performed on different browsers (Samsung Browser, Firefox on windows) but all of them sent the cookies allowing the authentication.

Is the behavior wanted ? From ietf it seems that is not a normal behavior : https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-same-site-00#section-2.1

Open 8

Pause/play button for media-playing websites no longer present in tabs list

As of around 6 weeks ago (bit of a guess) I no longer have the option of pausing/playing media on a tab from the tab list. For at least the last few years prior to this i… (read more)

As of around 6 weeks ago (bit of a guess) I no longer have the option of pausing/playing media on a tab from the tab list. For at least the last few years prior to this issue, whenever I had a tab playing media (mostly video, but sometimes audio e.g. a podcast episode on BBC.com) there would be a small pause button for that tab in the tab list.

I've attached a attachment (2 screenshots merged). The tab with the purple circle is currently playing a MP4 video (streamable.com) and I would usually see a pause button, I think where the circle is located but might have been in a different corner.

I found this Reddit thread which mentions the issue but outside of the 2 people in this thread I have not found any other info or reports. https://www.reddit.com/r/firefox/comments/1rh5gcy/youtube_buttons_playpause_missing_in_android/

Additional info: while playing video, I am able to pause through system notification (see image attachment) so the playback IS recognized. But no pause/play button in tab list.

Version and device info: 150.0.1 (Build #2016157687), 094f3362dcbcefdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1 OS: Android 16

Motorola Edge 60 Neo

Open 2 41

White Page

Hi, Sometimes I would be browsing on Firefox, then I would need info from another app for instance, then when I get back to Firefox, the page always appears white (see at… (read more)

Hi, Sometimes I would be browsing on Firefox, then I would need info from another app for instance, then when I get back to Firefox, the page always appears white (see attached). Consequently, I would not be able to see the notifications area and the info below the shortcut icons (see attached screenshot). I would not have this occur in the night mode. Thanks

Open 2 22

Pause/play button for media-playing websites no longer present in tabs list

As of around 6 weeks ago (bit of a guess) I no longer have the option of pausing/playing media on a tab from the tab list. For at least the last few years prior to this i… (read more)

As of around 6 weeks ago (bit of a guess) I no longer have the option of pausing/playing media on a tab from the tab list. For at least the last few years prior to this issue, whenever I had a tab playing media (mostly video, but sometimes audio e.g. a podcast episode on BBC.com) there would be a small pause button for that tab in the tab list.

I've attached a screenshot. The tab with the purple circle is currently playing a MP4 video (streamable.com) and I would usually see a pause button, I think where the circle is located but might have been in a different corner.

I found this Reddit thread which mentions the issue but outside of the 2 people in this thread I have not found any other info or reports. https://www.reddit.com/r/firefox/comments/1rh5gcy/youtube_buttons_playpause_missing_in_android/

Version and device info: 150.0.1 (Build #2016157687), 094f3362dcbcefdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1 OS: Android 16

Motorola Edge 60 Neo

Lukustatud 2 23

Rotating screen breaks videos

When the screen rotates, many videos freeze and thereafter all videos become unresponsive (and even some elements of the Firefox UI stop responding to taps) until the app… (read more)

When the screen rotates, many videos freeze and thereafter all videos become unresponsive (and even some elements of the Firefox UI stop responding to taps) until the application is closed and restarted. I have experienced this problem for at least a year now. Reddit is a repeatable example: going to any feed (such as r/popular with videos), playing one, and rotating the screen.

I turned off all battery and CPU optimizations for Firefox, which improves performance on videos somewhat, but does not resolve this issue.

Open 1 1 36