I’m using Firefox 143 on Android 13 and have set the *Open links in apps* setting to *Ask before opening* (not sure about the exact phrasing in English, my device is set to Dutch) For some apps, this works, e.g., when I click on a link to a YouTube video, I'm asked to open the YouTube app. Same for a news app, the IMDb app, and some others. However, for some other links, this does not work: mailto links do not seem to do anything, although I do see a progress bar in Firefox for a split second. Also, links to my banking app and another news app do not work. In Chrome, all links work properly. I have already uninstalled and re-installed Firefox, but that did not fix the problem. Is there something I'm missing? Is there some setting that prevents opening external apps on a per-app basis?

I discovered, to my dismay, that mobile browsers seem to have a different character limit than desktop browsers for JavaScript prompt() input. How can I work around it to input my long string on mobile? Here's a nice page for testing: https://javascript.info/alert-prompt-confirm#a-simple-page I used printf '%s ' {1..1250} to generate a suitable test string. Please find the resulting 5142-character string below.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 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On a Mac desktop's Chrome, the website accepts this input, no problem. On Android, it cuts off the input in the middle of 1222, at 5000 characters, and I'm unable to type more. I've tried Brave, DuckDuckGo, Firefox, Chrome, and Opera. The behavior is the same in all these mobile browsers. Changing to the desktop layout in the browser settings has no effect.

I'm using Chrome and Firefox on Android 10. I need to add a link to my home screen and I can't find a way to add the specific link. I know that I can do the following: 1. Go to the URL 2. Tap the overflow (3-dot) menu 3. Add to home screen However, if I navigate to a specific URL **within** some sites, like Weather Underground (https://www.wunderground.com/) and follow the above process, it doesn't add the specific URL, it adds www.wunderground.com and doesn't seem to give me any way to edit that URL to reference the specific subpage (e.g. www.wunderground.com/my/specific/url). Why, and how to solve this?

When connected to my home network via Wireguard on my Android device, I find that from within Firefox (or Vanadium) I am only able to resolve DNS only for hosts on the remote network. For example, I have a Truenas server with hostname truenas.lan which I'm able to connect to fine within Firefox, however if I try to connect to www.google.com DNS resolution fails. Wireguard is set to use a DNS resolver fd2c:cfce:c1ce:10:1. When I use apps other than Firefox or Chrome, DNS resolution of www.google.com works. For example, if I do a dig of www.google.com from within app [Ping & Net](https://play.google.com/store/apps/details?id=com.ulfdittmer.android.ping&hl=en-US) both A and AAAA records return a result from resolver fd2c:cfce:c1ce:10:1. Only when I disconnect Wireguard am I able to resolve www.google.com from within Firefox. **Question**: Why is Firefox only resolving *.lan hostnames when connected to Wireguard? **Additional info:** - Wireguard tunnel has IP fd2c:cfce:c1ce:10::1 on remote end and IP fd2c:cfce:c1ce:10::2 on Android end - Wireguard has 'Allowed IPs' set to ::/0 i.e. all ipv6 gets routed via Wireguard - truenas.lan resolves to fd2c:cfce:c1ce:0:3ce7:f1ff:fe35:ed56 - Android device is a Pixel 6a running GrapheneOS

I want to back-up bookmarks and history, but the Sync "application" on my android device "cannot connect to network" and the webpage only provides a never ending swirl, even on a laptop. (Yes, 'this is a question to ask at mozilla support'... which requires a Firefox account.) Alternately, is there any browser that allows this manually, exported to some .txt or other file? Edit: trying to install xBrowserSync, but it won't. I have a few versions, but each has this problem.   I scanned each at VirusTotal first, of course.

I wanted to give Firefox for Android a try (I'm a long-time Chrome user), but after installing it from the Play Store, I discovered it refuses to load any website, always showing this security warning that cannot be ignored: This happens on all sites and only on Firefox for Android, the same sites load correctly in Chrome and also load correctly in Firefox running on a Windows computer that is on the same network as my Android device. Any clues as to why this is happening? I'm running Firefox 105.1.0 on Android 12.

I noticed for a while using the app TrackerControl that Firefox connects to Facebook sites very often while I surf the web, for example a simple search on Google, or a search on Startpage.com which sites don't have anything in their pages linked to facebook sites. I have set TC to block trackers in Firefox by default. ### Trying to find out when this occurs I thinked that this happens in general until now. In fact before writing this question I did some tests and I noticed **one probable behaviour causing** connections every time, that is if I search a string through a Firefox's search engine in search bar. This happens both with predefined engine (google) and with custom one (startpage). This tests was done when I've just opened Firefox in private browsing so that there wasn't other working tabs (and there was no loaded facebook tabs opened in normal browsing tabs). Here is TrackerControl after a Startpage search (from bar) where Facebook domains result blocked 5 seconds ago: Here after a Google search (from bar) where Facebook's domains result also blocked 5 seconds ago: *Note:* probably (as I remember) instagram's domains are there because I visited it once and it wasn't blocked yet. The relevants domains here maybe are: *scontent-fco2-1.xx.fbcdn.net* , *scontent.xx.fbcdn.net* and *static.xx.fbcdn.net* The domains contacted are probably all that appear in the screen under Facebook (see 2nd update). But I noticed just sometimes that connections happen also if I only interact with firefox's bar and digit something. Than if I just use a page like this and I don't touch search bar, connections to facebook seems to not occurs since TC indicates that some minutes passed after the last connection. But now after about 30 minutes another connection was made even if I didn't touch search bar. ### Who is the actor This behaviour is strange because it seems that probably is acted by Firefox itself. I've never heard or read that Firefox communicates with Facebook and there is no reason, but only with Google for scanning URLs and downloads. Also after searching in google there are no results. I don't have strange extensions. Moreover I have the ext. *μBlock* and *Noscript* that should block Facebook together because I explicitly set the first to block Meta's websites in general and the second to block other non website's scripts by default. So those connections in TC should have never occured, except I think if they are made by Firefox, at which level every extension can't operate. Read 1st update. The problem occured for months, but I postponed this question until now. This means that I noticed this also with older versions of Firefox before the present since more or less one year ago or more. **Note**: TrackerControl app says explicitly that it doesn't support blocking trackers in browsers yet, but I read I could use it anyway. ### My complete "configuration": - Firefox from Play Store, version *114.2.0* (for successive versions see bottom) - Extensions: *uBlock Origin*, *NoScript*, *Decentraleyes*, *Google search fixer*, and other non relevant here but installed noramally from Firefox - I have search suggestions disabled so no contacts should there be while texting in bar. Moreover I have studies disabled and just "technical data and usage" enabled. - TrackerControl app installed from F-Droid, version *2023.01.31-fdroid* - Android version 8.0.0 (I don't think is relevant) - I forgot to say that I have from the beginning Avast Antivirus Installed, that should protect. I'm not an expert of TrackerControl. I hope that someone knows what is the reason because is not a good thing. Does Firefox do this in its code (I don't think) or is just an error of TrackerControl (It's not, see Update 2) or a malware? It's too invasive. Has someone experienced this or can reproduce this? Thanks in advance. ### Versions: I've checked if connections to facebook continue in newer versions and I noticed that them happened after every search in these ones: 115.2.1, 116.0.0(this not sure if typed correct), 116.2.0, 116.3.0, 117.0.0, 117.1.0, 118.1.2, 119.1.1, 120.1.0 (current) Just in version 118.1.1 I noticed very rare connections also after days, but they occurred. Generally it continues with every successive updates. --- ### Updates: - As asked in comments, disabling all extensions and restarting Firefox (also rebooting Android) doesn't eliminate the problem, connection persists after a search on the bar. - I tried app NoRoot Firewall in place of TC (both are VPN based); it gived connections to facebook (and also to instagram) in log right after a search. But Firefox connections was all allowed in rules of NoRoot Firewall. After I re-enabled TC (disabled NoRoot F.), which blocked facebook, those connections was more sporadic or absent for some time. But after one day of use (always with TC block activated) the problem returned as before, so the browser tries to connect at least after every search in bar. - I want to note that those facebook's domains which I look to often, are under "Essential" section. There are also other fb domains under "Social networks" which is tried to connect to after a search. - **Important**: All this happens on that Firefox I have installed; in fact if I install a new one all this things don't happen. *So it is a malware that changed something in Firefox that persists with updates? Is it possible? Or maybe in the past I have installed accidentally an extension or taken a malware during surfing, that changes Firefox persistently?* If this is the case Firefox didn't protects itself or Google/Android OS or Avast didn't protect the phone from malware inserting in an application (which should be write protected). In fact I never rooted my phone, but the support ended since some years from the first post so something utilized a vulnerability to write where it should can't do? I have seen that the Knox bit (I own a Samsung) has not been changed from default value, so the malware has never rooted the phone (if this bit works). - For the persistent changes I thinked there was some about:config entries modified. So (I figured out how to do and) I searched in all entries some links related to fb but I didn't find anything. So I think is some strange malware from fb more deep in the application.

I have a passing interest in linguistics and sometimes do some reading up on the topic in my spare time, and lately I've noticed that whatever font Firefox is using on my phone just doesn't support important parts of the IPA and certain rare CJK characters, and it doesn't seem to be falling back (though I'm not sure if missing ligatures are normally a fallback situation--but ligatures are mandatory for Chao tone letters, not just an aesthetic thing like they are in standard text). I'd like to install a font that does, but I can't seem to find any information for how to do this--search engines apparently just think I'm trying to change the font used in the system UI, and the google play store keeps pointing me to weird custom keyboards. So, my question is: how do I get a font in the correct place for it to be available, and how do I set up Firefox android to use that font as a fallback or even by default? It's definitely not a case of the website dictating a font that doesn't support it--I can load the same page on my laptop and it renders fine. If it's relevant, my phone is a Kyocera Duraforce Ultra E7110. ---- [Here's](https://en.wikipedia.org/wiki/International_Phonetic_Alphabet#Computer_support) a (section of a) page that renders wrong, which also happens to be a section about font support for the exact characters I'm having issues with. There's a test sequence in the caption under the image on the right. Specifically, on my phone, the sequence ˨˦˧꜒꜔꜓ renders as , instead of how it should render, as . (Most fonts support the first half of that, the standard-orientation tone letters, but many do not support the reversed ones--including the one stackexchange uses by default, it would seem.) As for android version, here's what my phone says: - Android version: 12 - Android security update: January 1, 2025 - Google Play system update: February 1, 2025 - Baseband version: HI.2.0.c3-00516-1 (that might start with Hl, I'm not sure) - Kernel version: 4.19.157-perf - (Kernel version second line:) #1 Wed Jan 29 02:19:57 JST 2025 - Build number: 5.230VZ

I use Firefox on Samsung Galaxy S21 with Android 14. When I put my finger on the screen it often (3-4 times a day) shows the refresh icon and when I remove the finger the page refreshes. I don't swipe. I haven't found a way to abort the refresh or to reliably reproduce this behavior. I also never noticed this when I was using Pixel with Android 12. Is this a Samsung feature? How to disable it?

I recently started seeing this popup when I click on the View more comments button at the end of a conversation in reddit when browsing on Firefox Mobile. It says "Log in to view the conversation". I'm not sure if it's ordinary JS, or the browser is showing it, or it's from the system. I've disabled the "Google Account sign-in prompts" described here - https://www.howtogeek.com/735152/how-to-turn-off-the-sign-in-with-google-prompt-on-websites/ , so it shouldn't be that. How can I disable it?

I just got a new phone, a Pixel 9 Pro XL. Warhorn.net main page loads without CSS, and all the other pages are blank on my phone, even if I request the Desktop site. This only happens on Firefox on this phone, it works without a problem in Chrome on the same device, and in Firefox on all of my other devices. All other sites seem to load just fine. How can I fix this?

When you click a link in many apps, the URL already comes with all sorts of info about your device, and since I'm a little too conscious about that, I would like to inspect each URL before Firefox sends that request for god knows where, but click super fast in the X button seems too crude (and probably ineffective) for me. Is there something in about:config or somewhere else for that?

This may be a ridiculously simple question, but where is the bookmarks list in Firefox for Android? I'm looking at the interface on my Galaxy Tab 10.1, and I can't find the bookmarks anywhere. They're not available when clicking on the top right corner. They aren't available anywhere else. The only place I can find them is when I open a new tab, I get an interface which shows my bookmarks as one option, along with "History", "All Pages", and "Desktop". Surely I don't have to open a new tab every time I just want to go to a bookmark? This is one of those things that's so simple it seems they haven't even bothered to mention it in documentation. At least, not that I've seen.

I'm using the Firefox app on Android 14 to access email services. I don't have any dedicated email apps installed. - I'm doing everything through Firefox. Is there a way to make Firefox run in the background so that when I receive a new email, I get a notification? Importantly, the notification should be sent by Firefox itself, perhaps with an add-on or similar mechanism. I'm looking for a solution that works entirely within Firefox, without relying on external email clients. Any ideas or suggestions would be greatly appreciated.

A lot of settings on Firefox for Android need about:config, but I cannot open it by typing in the address bar. Here are the screenshots. ||| |-|-| |Waiting 15 seconds after I typed about:config in the address bar and pressed Enter|The version of Firefox app (v88.1.3)| What am I doing wrong?

From [this question about Firefox in general](https://superuser.com/q/1113362/435295) I have tried everything except the custom css answer. How can I force enable Reader Mode in the Android app? Even the about:config page won't open. Maybe it's at a different location or something.

When I click a link in another app, say "Gmail" for instance, it opens up an in-app browser to view it. When you click on the top right menu bar, you can see that at the bottom it says "Powered by Chrome". On another older phone, it somehow used to be "Powered by Firefox". I don't remember exactly how I enabled it. How should I enable it in other phones?

I'm using the Google News feed (swipe left from home) a lot. However, I want to open the respective links using Firefox instead of Chrome (mostly because I can disable autoplay on Firefox, but not on Chrome I think). I tried looking through the options as well as the internet, but I haven't found a way to open these news items in a "custom" browser. Is it possible?

For a specific website, I clicked on "Show desktop version" link. Unfortunately the desktop version is so broken I cannot use it even to click on "Mobile version" link. Because the website remembers the setting using cookies, I need to clear that specific cookie to get mobile version of the website back. When I use "Guest mode" in Firefox, the website works which confirms my hypothesis that cookie causes my problems. Therefore the question: How to delete one specific cookie in Firefox on Android? I tried installing some plugins, but all I got was "Installation failed" toast message on screen.

How can I turn disable redirects in Firefox for Android? Here is a solution that works for desktop Firefox: https://superuser.com/questions/874819/prevent-automatic-redirects-in-firefox Unfortunately the **accessibility.blockautorefresh** option is not present in Firefox for Android.