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?

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.

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 am adding tabs to Collections and have noticed that I cannot change the order in which the list of Collections appears, either on the Home page under subheading "Collections" or upon clicking "Save to collection" from the three-dot menu.

The order seems to be fixed by an ordering system of oldest to newest. There is no way to rearrange this ordering, either to alphabetical ranking or custom ordering.

Is there a way to switch up the chronological ordering? Any help would be much appreciated.

Hello. The browser is used on Android. xiaomi phone I have 1 question about creating new tabs. How can I bring the icon for creating new tabs to the foreground, so that the + is near the sites input line?

so that it is located here as shown in the screenshot.

thank you for your attention.

Hello, I'm using Firefox for Android and actively work with bookmarks. I really miss the feature that would allow me to edit bookmarks directly from the search results — for example, to rename or even delete them. This functionality seems to be missing.

Am I doing something wrong, is there a trick to it, or could this be a small update worth considering?

Thanks a lot for any response.

Best regards, Meik Alef

On July 2nd, I began receiving error messages in emails that connect with Healthcare apps that I need to check settings in my browser for Javascript & turn it back on.

I read in solutions that it's automatic, but there must be a way to activate it again. I even restarted my phone hoping that would solve it.

Hello!

In Firefox android, sometimes when I press the address bar, instead of coloring and deleting the whole address, so I can type new address, it goes into some editing mode, where when I start typing, it starts continuing the address already there. What is this extremely annoying feature? I share a screenshot where an address is colored. The grey "normal" part, and the purple part where the cursor is when I start typing.

I default to using private browsing on Android. However, even with having one tab open(no tabs open in normal browsing) firefox consumes way too much resources after a while and only having one tab open (>2.5 Gb of ram).

I noticed that normal browsing caches itself when it is not active on screen while private browsing keeps running in background and memory usage keeps going up by the second. Attached are screenshots of memory usage going from around 250mb to 2.5gb in couple of minutes. All I had open was a single tab!!

Why the hell your history always been such a mess for android. Why that stupid grouping and no dates. And why tf I have to enter the search again in it after each opened link. You have no idea how annoying it is to look for anything. Surreal you can't figure it out in all these years

Currently I'm running Firefox Android 140.0 on Android 15, though this issue has been present for the past two to three years, though it has started to occur more often in the past six months.

When browsing Private Tabs, the browser will regularly close all these tabs on its own, unprompted, and show the New Tab page for Private Tabs. This is visualised by a slide left animation, similar to switching between tabs by swiping across the navigation bar. Sometimes, this also occurs when switching apps, even though Firefox is locked to prevent its background task from being killed. Normal tabs are not refreshed. The “Close Tabs” setting is set to Never. The specific websites accessed do not change anything, as they are different each time.

Steps to reproduce problem:

1. Open several (5-10) Private tabs
2. Browse as normal
3. After a couple of days, whilst browsing, all Private tabs will close themselves. Alternatively, lock the Firefox app in multitasking view, then switch apps for a minute and then return (this tends to happen at random after a couple of days).

This is offered as Mozilla support but it mihht never be answered

Please tell me my sign in email so I can check passwords and logins in Firefox for a uRL subscription that suddenly doesn't work on my 

Android.