Firefox for Android Community Forum

To use the https://www.blitzrechner.de/ mwst rechner calculator feature in Firefox for Android, simply type a mathematical expression directly into the address bar and press Enter. Firefox will display the result in the address bar itself, without needing to open a separate app or tab. Detailed steps: Open Firefox for Android: Launch the Firefox browser on your Android device. Navigate to the address bar: Locate the address bar at the top of the browser window. Enter your calculation: Type your mathematical expression directly into the address bar. For example, you can type "2 + 2", "10 * 5", or even more complex calculations like "sin(30)" or "log(100)". View the result: Press Enter. Firefox will display the result of your calculation in the address bar. Additional information: Built-in functionality: This calculator feature is built into Firefox and doesn't require any add-ons or extensions. Customization: You can customize the appearance of the Firefox homepage, including adding or removing shortcuts, but this doesn't affect the calculator functionality. Troubleshooting: If the calculator isn't working, ensure you don't have any extensions that might be interfering with the address bar's functionality. You can try disabling extensions one by one to identify the culprit. About:config: For advanced users, the about:config page allows you to further customize Firefox's behavior, including settings related to the address bar and search suggestions, but it's recommended to proceed with caution when making changes there.

Multiple times a day, I'll open Firefox Mobile and find that the settings have reset themselves: The tabs are set up in grid view, and the homepage has had sponsored shortcuts added, with Google, Wikipedia, and something about trending stories pinned, as well as stories/sponsored stories toggled back to on.

This happens multiple times a day. Sometimes I will open it and find that not only have my settings reverted in this manner, but *multiple* Google/Wikipedia/trending shortcuts have been pinned.

How can I stop this from happening?

I can't access reddit.com on Firefox for Android. I have no problems accessing it on Firefox for PC or Mac. It was loading fine this mornig, but for the past couple hours, I've been getting "address not found." I have cleared my cache and all browsing data. I tried force stopping and restarting the app. I've tried restarting my phone. Nothing fixes the issue. Anyone know what the problem might be?

I have some websites that require pop-ups. I cannot get them to work in Firefox on my Android phone. Google searches reference a setting under "privacy and security" where I should be able to allow pop-ups in general or for certain URLs only, but I don't have that setting option.

I have Firefox version 139.4 if that helps.

Thanks in advance, Paul

Hello. I want to download Your new version of Android Firefox? Why i must use site like apkmirror.com ? Why you have so big problem to use any FTP or any site on Your servers to take this packeges. Im saying about full version of public? Why topic about this from 2015 is close and thes links dont works? Please send me good link to one site and will be nice like dont delete it in future like last topic about it! Please help I dont use google gulag store! Thanks best

Firefox Nightly on Android used to have a secret option to split the toolbar with the address bar on the top and the new tab, extensions, etc buttons on the bottom.

This feature was removed after 139.0a1 and hasn't returned. How to I restore this functionality?

I've been sitting on the older version for a couple months and would like to upgrade, but a combined address + toolbar is absolutely a deal breaker. Thanks!

Hello. How to add an extension to a .xpi file manually using a phone???

Здравствуйте. Как с помощью телефона добавить расширение в ручную файл формата .xpi ???

Not adjust numbers bar for sign in. Due to this problem I am unable to sign my account. In other browsers it works properly like chrome and opera etc. Please check attachment

No idea who is responsible for the UI on mobile devices (android in my case), but what I noticed lately, it starts to upset me. First of all, the url bar is clogged with icons and I can't even see the website address (screenshot attached). This needs to change. In my opinion, seeing the website url is really important, I don't want to see icons that I never use or use them VERY rarely. And my second issue, is that the bookmarks menu is at the top of the menu, and it's impossible to reach it with one hand using one finger. This should be put at the bottom, because in my case I use the bookmarks very often, and this annoyance really gets me. Also, regarding bookmarks, why can't we move the bookmarks up and down? We only have the delete button, but no moving options. Example - I have a folder named Movies with 10 saved bookmarks. Inside this folder I want to move 4 bookmarks down and 3 up. Can I do this on android? No. Why? Because. So, is it possible to add these BASIC functions in a future update? Thanks.

Prior to the 6/16/25 release, hitting the back button on the three button control on a page with no previous pages would open the home page without closing the current tab. After the update, it closes the tab before opening the home page. This was useful for quickly opening multiple tabs, as well as preventing accidentaly closing a tab. Please revert this change, or make it a setting.

As of this morning (7-5-25), the app Firefox and only the Firefox app turns my entire phone screen grayscale when it is open in the foreground. The color transition takes about a second, and if I tab to another app or the home screen it takes about a second to transition back to full color. I cannot find any active grey scale settings in either my phone or the app. I have downloaded no extensions to my knowledge.

Can you please add the "Malayalam" language to this browser? I don't use this app because it doesn't have this language. Can you add this language to the translation? 🙏🏻

When browsing with firefox I press the back button firefox sometimes goes back a couple of pages instead of one I'm using the latest version of Firefox on Android 14

Dear Support, while using my email, Outlook, on my mobile, I cannot log out of my account. Can anybody help, please?

Am using the Galaxy A21s Android mobile.

Am using Android 12.

My browser is Firefox for Android, version 140.0.3.

The email is Outlook.com.

Whenever I go into my own account, I click on my profile, and then sign out. In the very recent past, the system has done exactly that. Now, however, the system 'hangs' and does nothing. The only thing that was different was the updating of Firefox for Android.

Could anybody suggest anything, please? Do not want to stay logged on, especially on an Android mobile, Marek

I don't know if there's anywhere else that allows you to report bugs, so I'll do it here. Currently, you cannot swipe away download pop-ups on the mobile version of firefox beta and it covers screen elements for as long as it persists. It's a minor bug that removes your ability to tap anything on the bottom of the screen for 20 seconds or so when it timesout. An example is in the image I gave. The screen pop-up continues to block any interactions behind it.