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I am using Firefox version 151.0.2 on android version 16, but I have been having this issue for months, since before 151.0.1. In some fillable fields on some sites, words duplicate as I type and/or the cursor jumps into the middle of a word. This is most frequently triggered by backspacing but can also happen when using numbers or symbols, such as when filling in a date with slashes or dashes. I've also witnessed it happen seemingly randomly.

Some situations in which this has occurred: -the tag field when creating or reblogging a post on the browser version of tumblr -the birth date field on my state's DMV website when trying to renew my car registration -multiple billing fields when trying to enter card information on a ticket vending site -this text box, the one I'm typing in right now to report this issue. Backspacing and using these dashes for this list both triggered the bug during the course of writing this up.

This has gone from merely irritating to actually being an obstacle (in the DMV example I could not get the field to accept any date format without duplicating and had to use the little popup calendar to select the day instead. What if that had not been a option?). My phone says both its software and Firefox are up to date. What else can I do?

switching windows in and out Firefox android seem to reload the open page, this sometimes means significant waiting time and in case of scrolling pages the loss of your last position

Running Mozilla 151.1 (72455) on iPhone 13Pro Max using iOS 26.3.1 (a)

Anyone else experiencing the following?

If I am browsing any web page in private mode, then tap the "+" to add a new private window, I can not get to / tap on the navigation bar to type a URL. It ceases to be an input field. I have to exit the browser completely and start anew.

Using the home screen search widget with the composable toolbar enabled(which can't be disabled anymore) on LG G8 causes the keyboard to open as usual but will not dismiss with the button or completing a search where it will attempt to dismiss but fail halfway through animation and block part of the screen.

Reproduce-able with these steps on LG G8: 1 Close Firefox 2 Open search widget from home screen 3 search something in url bar 4 Press Enter 5 Go to homepage, screen off, take a screenshot, or click on another text input box to make keyboard go down, sometimes with glitchy animation.

Not sure the exact cause but it also happens when browsing normally, i think its when a website loads and opens keyboard on its own.

Doesn't seem to happen on Samsung A16

LG G8 Gboard or LG Keyboard Android 11 Video

Been using Firefox for over a decade. But lately is has become so slow now. Often freezes up if more than two tabs are open or a website is in any way very complex. What settings and issues should I check? What has changed? I can run the same sites on Brave and Edge browsers with no issues or not nearly as slow and bogged down.

Windows 10 Open Firefox (151.0.2) Google "does alton towers still run in the rain"

My CPU then goes to 100% continuously. Why, CPU occupancy has only gone up in the last few weeks. This happens in a lot of searches.

当把Firefox置于后台一段时间，甚至是很少的一段时间后，就需要重新加载页面，这个加载过程很慢，通常需要几秒至几十秒，大多数时候都在十几秒。 这对于一个移动端浏览器来说是严重性能影响，因为很多时候可能只是随手搜索一些东西，打开或加载过慢尤其影响使用感受。 像其他浏览器，比如我正在使用的其他浏览器Edge或X浏览器，基本上可以无论何时点开直接使用。

Hello! So long story short I've been looking to switch my default browser to Firefox and I would've done so by now if it wasn't for this small issue.

It's not anything super important, but it has been mildly annoying to deal with. I can't say for certain how long this has been an issue in general since I've only just started trying out the Firefox search widget about a week or two ago. The issue happens every time I use the search widget and seems to happen infrequently when I use my private tab shortcut too, but doesn't happen when I use the app directly however. After a initial search (when you first open the widget/tab), my keyboard would freeze on screen (sometimes fully opaque and other times a bit transparent in a similar way to a screen burn). I can only fix it by either exiting and re-entering the app/tab or by clicking on a link and having it redirect me. I have zero clue as to what could be causing this or if it is some kind of bug?

Any help would be appreciated, thank you!

On a random basis, sites like msn.com, yahoo mail or outlook.com will freeze. Sometimes they may suddenly come back to life, but the normal fix is delete tab and restart tab. Long videos may also freeze. Have cleared history, and changed optimization setting but nothing helps. On 151.0.2 64 bit.

For a few weeks now, trying to to type anything while using Firefox on android mobile is an exercise in frustration and insanity. It makes me want to tear my hair out. I type part of a word, and then it suddenly adds the autocompleted word after the end of the letter I already typed. It also keeps screwing up after apostrophes: I type "The car is Jo's car" for example, and suddenly the cursor makes a space after "Jo", but the cursor moves to behind the "s". The end result looks like "The car is Jo' car"s

I'm not making this up, it literally happened while typing the above line and I decided to leave it like that for you to see. Typing in firefox right now is maddening.

Hi whenever I use my Google account to sign into websites (Google, ebay, YouTube, & anyother sites,) Firefox will become unresponsive, the window containing the tab i was using becomes unresponsive, sort of. - I can't click any open Firefox Tabs, - the red 'Close' radio button is greyed-out, so I can't close any tabs or the window - right-click is unresponsive, so i can't close tabs that way, but Command-W closes the tabs normally, but the others are still unresponsive.

- i can open a new Firefox window (with &/or without Tabs,) which works normally.

- & unrelated, but earlier, Firefox was running really slowly, Youtube videos were slowed down, but audio was normal, and scrolling was slow.

Hello, I'm having trouble with my Firefox Nightly Android today. The scrolling is very choppy while trying to browse any article or webpage. It's most noticeable if I quickly scroll down and up. There is a large delay before my page scrolls back up. Is there any setting I have to change to fix this?

Thanks

(android version)It's so slow that when it takes too long to open a page I just copy the link and use brave.the only reason I use firefox is ublock origin.And no I wont be clearing cache now and then it happens fairly quick after clearing anyways.And I tried to disable extensions even ublock and it still is slow.remind you no other browser has any performance issues.Its even worse when a website login to account needs verification that needs performance and it takes too long.I just give up and login through another website.Well this is me ranting I wont be changing browsers unless ublock gets taken down.nor waiting for an actual solution there seems te be none anyways.Well thats all

just agreed to the new update for firefox and now my scroll bars will not work properly. they keep jumping to the far right hand side of page and when moving the scroll bar to the left so I can view the whole thing it will not stay. it jumps back to the right side.

Recently when typing on Firefox on the duckduckgo search engine, anything you type gets doubled, and you cannot backspace. The issue doesn't occur when on Google page, only on ddg. I also tried different keyboard apps and the issue still persists. I went to the same page on Google chrome and the issue does not occur. This just started happening within the last week or so. If it matters/helps, I'm on Samsung s24 ultra.