Update Firefox for Android now to fix a critical security hole

Firefox for Android
(Image credit: VideoBCN / Shutterstock)

Mozilla’s Firefox browser for Android was updated recently to patch a vulnerability that would have allowed an attacker to view your data through a JavaScript exploit.

Firefox was once seen as a fantastic alternative to Microsoft’s Internet Explorer browser, showcasing fast load times and a clean UI, with tabs as its front and centre feature.

With the rise of Google Chrome and Apple’s Safari browser, its spotlight has dimmed, but its features on Android and iOS easily take it shoulder to shoulder with the other browsers on these platforms.

What was the issue?

There is an exploit called ‘universal cross-site scripting’, which allows a hacker to look upon your browser history through cookies and see any data that you may have typed in, which would allow them to gain access to certain accounts.

This exploit would have allowed someone to ‘spoof’ the browser into thinking that a previous webpage the user had browsed was genuine through Javascript code. But in effect, the code would hijack Firefox, and would be able to look at your stored passwords.

Curiously, only the Android version was affected, but with version 88.1.3 now out, the vulnerability has been fixed.

How to update Firefox 

While the Google Play Store can update apps automatically, it’s always best to go into the app itself to check for updates. The list of recently updated apps will notify you if Firefox has been updated or not.

The update should be listed as version ‘88.0.1’, which will list the fix for this JavaScript vulnerability.

If Google Play hasn’t updated the browser already, just press on ‘Update’ and Firefox will download, fixing the vulnerability.

Via Naked Security by Sophos

Daryl Baxter
Software & Downloads Writer

Daryl had been freelancing for 3 years before joining TechRadar, now reporting on everything software-related. In his spare time, he's written a book, 'The Making of Tomb Raider'. His second book, '50 Years of Boss Fights', came out in 2024, with a third book coming in 2026. He also has a newsletter called 'Springboard'. He's usually found playing games old and new on his Steam Deck, Nintendo Switch, and MacBook Pro. If you have a story about an updated app, one that's about to launch, or just anything Software-related, drop him a line.

Read more
Apple Siri
Update your Apple device now: iOS 18.3.2 fixes a flaw that could be exploited by hackers
An option to add Ambient Music buttons to the iOS 18.4 Control Center.
Apple fixes dangerous zero-day used in attacks against iPhones and iPads
A man holds a smartphone iPhone screen showing various social media apps including YouTube, TikTok, Facebook, Threads, Instagram and X
A worrying Apple Password App vulnerability reportedly left users exposed for months
A finger touching the google chrome icon in the Windows 10 start menu
A new Chrome browser highjacking attack could affect billions of users - here's how to fight it
Apple's new "Share Item Location" feature for AirTags.
Apple security alert - zero-day patched, so update your devices now
A computer being guarded by cybersecurity.
Worrying Windows security issue patched by 7-Zip, so patch now
Latest in Software & Services
TinEye website
I like this reverse image search service the most
A person in a wheelchair working at a computer.
Here’s a free way to find long lost relatives and friends
A white woman with long brown hair in a ponytail looks down at her computer in a distressed manner. She is holding her forehead with one hand and a credit card with the other
This people search finder covers all the bases, but it's not perfect
That's Them home page
Is That's Them worth it? My honest review
woman listening to computer
AWS vs Azure: choosing the right platform to maximize your company's investment
A person at a desktop computer working on spreadsheet tables.
Trello vs Jira: which project management solution is best for you?
Latest in News
Disney Plus logo with popcorn
You can finally tell Disney+ to stop bugging you about that terrible Marvel show you regret starting
Girl wearing Meta Quest 3 headset interacting with a jungle playset
Latest Meta Quest 3 software beta teases a major design overhaul and VR screen sharing – and I need these updates now
Philips Hue
Philips Hue might be working on a video doorbell, and according to a new report, we just got our first look at it
Microsoft
"Another pair of eyes" - Microsoft launches all-new Security Copilot Agents to give security teams the upper hand
The Samsung Galaxy S25 Edge on display the January 22, 2025 Galaxy Unpacked event.
A fresh Samsung Galaxy S25 Edge leak hints at a 2K display and a titanium frame
Hatch Restore 3 in Putty
You can finally start your day with The Office theme song, and I couldn't be more excited