Firefox for Android Support Forum

Firefox browser on Android is not opening mail apps when clicking Mailto link. Screen goes blank. No action. Firefox laptop browser works fine, opens mail app when Mailto link is clicked. Picture shows "President" highlighted in orange...this means the link was clicked but the browser didnt execute the send email command, so no mail apps opened. Used Chrome on this link and it opened a window with several mail app options.

HELP! My mobile data usage spiked as of June 20th and has continued at unprecedented levels almost every day since. My historic daily usage for the past many years has been around 4 MB and is now 95MB. and busting through my 2GB/month limit. This is ALL due to Firefox! What happened? Something strange happened on June 19th, when my mobile date usage recorded three separate usage figures instead of the single usage figure for all days previously. June 19th showed 2 usage figures and June 30th showed 3.

The power draw can be heinous. In 37 minutes of use so far for this full charging cycle, it has used 5 times the power (measured by Android's battery page) as RedReader has in its roughly 2.5 hours. Is there a way that can be brought to heel a bit?

Dear Firefox Support Team,

I am writing to seek assistance with a technical issue I've encountered while implementing a backdrop filter and animation on a navigation bar.

To provide some context, I have incorporated a backdrop filter effect on our navigation bar, accompanied by a translateX animation to reposition it smoothly. However, when testing the website in Firefox, I have noticed a noticeable choppiness in the animation performance. This issue persists on both desktop and Android devices.

To help you better understand the problem, I have included a screenshot, so you can see the issue.

I would greatly appreciate any guidance or suggestions you may have on how to address this problem and improve the performance of the backdrop filter and animation in Firefox.

For your convenience, here are the relevant links:

   Live Site URL: https://ohsorrow.me/Space-tourism-website/
   GitHub Repository: https://github.com/OhSorrow/Space-tourism-website

Your expertise and support in resolving this matter would be invaluable to our project. Thank you in advance for your time and assistance.

Sincerely, Aram

Briefly, when openning a link that should redirect to a WhatsApp chat, it says - after pressing open chat - WhatsApp not installed. Why? Note: In chrome it is working normally.

I own a Samsung Galaxy Tab A8 and Samsung Galaxy A42 5G. Neither of these devices has the monospace font Courier New installed. However, when using Chrome, text boxes on websites that use Courier New are displayed in a different monospace font (which I've been unable to identify). On Firefox, they are not. This breaks the appearance of some websites which rely on text being monospaced but don't include "monospace" in their CSS font family.

Image 1: Screenshot of a website that uses Courier New, as it appears on desktop (both Firefox and Chrome). Image 2: A snippet of the CSS used in that website, showing that the font family is "courier new,courier" and does not include "monospace". Image 3: The same website using Chrome on mobile (on both the phone and the tablet). The font is distinctly not Courier New (or Courier), but is still monospaced, salvaging at least that aspect of the text. Image 4: The same website using Firefox on mobile (on both the phone and the tablet). This displays a non-monospaced font.

The obvious fix is to simply install Courier New on the phone and tablet, which I'm working on doing (update: this is much harder than it should be). However, I think Chrome displaying a different monospaced font when the requested monospaced font is unavailable is a good user experience feature, and would like to see it mirrored in Firefox.

When a private tab is opened, it lets me know in the silent notifications on my phone with the "swipe or tap to close" the tab/s. However, once I close the private tab that notification remains. When I click or swipe the notification it goes for a second and comes back despite not having a private tab open. Even with normal tabs open it does the same thing. Force stopping the app gets rid of it but the second a private tab is opened it returns.

I understand I can just turn off that notification but it's useful to have. Was just wondering if there is a fix or setting anyone knows of or how I can report this to Mozilla?

Thank you

I have the latest version of Android 13 and Firefox up to date on my phone, but there's been some weird behavior when playing videos as of late. Videos refuse to properly go fullscreen now. When I tap the fullscreen button, the video moves to the center of the screen but stays in portrait orientation, which is obviously not what I want. In addition, picture-in-picture is not working at all, and the notification control panel (that lets you pause and play minimized videos from the notification) is not appearing even though notifications are not disabled for Firefox. Videos still play, but almost none of the features for them are working. What is going on? Can anyone help?

Websites are mostly reporting that my browser Firefox Android latest needs advanced or enhanced Javascript support and about:config no longer works.

All sites working in Microsoft Edge for Android.

After connecting a bluetooth headset and using Firefox (115.0a1 (Build #2015950435), 1d9511bcc3 + this version so far) to play online video is obviously lagging, not audio and video is not synchronized, is to play a moment to get stuck in a frame like this. My own troubleshooting revealed a problem with Firefox and the encoding format selected for the headset. Currently 1 the problem is only in bluetooth audio encoder selection acc (lhdc also have the problem but the symptoms are not as serious as aac) and triggered in firefox, other browsers can not be reproduced, test redmi k40 and xiaomi 13p also can not be reproduced. 2 after the screen recording is turned on, the problem is obviously lagging. 2 The problem disappeared after turning on screen recording, the screen recording parameter is 1280x720@60 at 32mbps, and the audio source is recorded in the system. Play the video first and then open the screen recording lag disappeared, first start screen recording after playing the video lag does not appear. And no matter what kind of situation screen recording stops lag recovery.

Steps: - create an iframe without src - create click event listener on any other element - set iframe src to on click to some url that supports "go to application" e.g. YouTube embed url

Expected: Iframe shows youtube video on element click

Actual: Firefox asks to open a new tab or open an app, and never shows this in iframe

Fix for developers: Recreate the iframe with the src

It only works on ff android, we spent literally hours to catch this bug

This situation happened after I updated to the latest version of Firefox at Play Store. Once I connect to the VPN, every website only shows this error and refuse to open normally. After I uninstalled and reinstalled it, nothing changed even I also cleared the cookies and cache. And then I downloaded the extension called FoxyProxy and selected it's proxy type as system, but it showed that system settings is not supported due to Firefox limitation.

I didn't change anything, a few days ago everything went well, but it just happened suddenly without any notice. Other browsers are fine except Firefox.

Please advise. Thanks for your assistance.

I'm a regular user of community.signalusers.org, which is a community forum for users of the Signal messaging platform. The website uses the open-source Discourse application to host the community forum.

Often, however, Firefox fails to load the website. The webpage begins to load, but doesn't move beyond the page you see in the screenshot.

I suspect this has to do with Discourse because another website that uses it (0x00sec.org) also doesn't load.

Both these websites load just fine on Google Chrome. I have attached Screenshots of both. Not sure if there any debug logs or such that I can attach that might be useful here.

I'm accessing the websites from a OnePlus 6T running Android 11. I'm running the latest Firefox beta. This issue is also not 100% reproducible, unfortunately, so it's that much more annoying. It occurs seemingly randomly, and then seems to fix itself at some point, only to break again.

Happy to provide more info, if needed.

I'm following the instructions to set Firefox nightly as my default browser, but when I go to settings and try to switch the toggle to "set as default browser" instead of doing it, it just opens a new tab with the instruction. I got up to 4 identical tabs before I gave up. I know how to do it, it's just malfunctioning.

In a separate issue, I have had Firefox Beta for about a year on my Kindle Fire, always worked great. Since the latest update, it won't even open. The screen pops up for a second, then immediately closes. I uninstalled and reinstalled, same issue. I installed regular Firefox, no issue. Then I found nightly, installed with no issue (other than the problem listed above).

The soft touch(or short touch?) feature on the website doesn't seem to work on Firefox. Compared to chrome, Samsung Internet, Brave, Vivaldi

In other browsers, if you lightly touch a post on a community site, etc., the post will highlight or display a preview image, but Firefox does not show this feature, only displays a system window, such as copying links, when pressed strongly.

This problem seems to be related to the browser's touch function. It's not a long press. It's a matter of short press

While browsing Amazon.com using the past several builds of the Nightly for Android, I get this most annoying bouncing pop-up tip that is a yellowish with black font saying to click on this heart icon to save the product. I have never seen this on any other browser for Android, and never on my Firefox on my laptop or desktop. Is there anyway to get rid of it? I cannot stand this and I have almost thrown my phone because of it many times. I have never thrown a phone before. I cannot explain why, but it pisses me off so very much!

When not in fullscreen, visualViewport updates correctly. However in fullscreen mode visualViewport remains fixed and never changes. Is this a bug? It's creating an issue for my webapp which has a fixed text entry element at the bottom of the fullscreen element. I have to detect the visualviewport changing when the keyboard shows otherwise it is completely obscured. Please assist me.