Firefox 150 turns its PDF viewer into an actual PDF editor

With Firefox’s newest model 150 replace for Home windows, macOS, and Linux, Mozilla has launched few genuinely new options however some noteworthy enhancements. The cut up view is less complicated to make use of, the built-in PDF viewer is more and more evolving right into a PDF editor, and the builders have as soon as once more fastened a number of vulnerabilities.

Mozilla plans to launch Firefox 151 in 4 weeks on Could nineteenth, 2026.

What’s new in Firefox 150?

The split-screen characteristic launched in Firefox 149 has been improved. Now you can right-click on any hyperlink and choose “Open hyperlink in cut up view,” and you may also swap the 2 halves of a cut up window.

The built-in PDF viewer/editor can now additionally reorder PDF paperwork and replica, paste, delete, or export pages. It’s also possible to copy and save photos contained inside PDFs. The power to merge a number of PDF paperwork right into a single file is predicted to observe quickly.

Firefox’s translation characteristic, which operates domestically with out cloud providers and thus respects your privateness, can now do extra than simply translate the content material of internet pages you go to. In case you go to about:translations within the tackle bar, you may translate any textual content (just like how Google Search has completed it for years).

The brand new profile administration is now additionally obtainable on Home windows 10. This lets you separate work and private searching, together with bookmarks and passwords. On Home windows 10 and 11, now you can additionally again up your profiles domestically.

Firefox’s free VPN, which was launched with Firefox 149 and has some limits, will probably be expanded with Firefox 151. It’ll finally have a alternative of areas: USA, Canada, Germany, the UK, or France. Presently, it’s at all times set to USA. Firefox for Android can even obtain the VPN characteristic, though the precise date will not be but confirmed.

Safety fixes in Firefox 150

In Mozilla’s Safety Advisory 2026-30, the corporate lists 41 fastened safety vulnerabilities. Round a 3rd of the vulnerabilities are categorized as excessive threat. These embrace a number of use-after-free vulnerabilities, for instance within the JavaScript Engine and the HTML renderer. An additional 18 vulnerabilities are categorized as medium threat.

The final three entries within the Safety Advisory listing an unspecified variety of internally found points, grouped beneath CVE numbers CVE-2026-6784, CVE-2026-6785, and CVE-2026-6786. These problematic reminiscence entry errors are additionally categorized as excessive threat. A few of them additionally have an effect on Firefox ESR and Thunderbird.

Tip: Whether or not you retain your browser updated, you want correct antivirus protections in order for you your PC to stay safe and personal. Try our picks for the perfect antivirus software program for Home windows in addition to finest VPN providers to remain forward of safety issues.

Different Mozilla browser updates

Along with Firefox 150, ESR variations 140.10.0 and 115.35.0 are additionally now obtainable, though the latter is barely obtainable for Home windows 7 and eight.1 and macOS 10.12 to 10.14.

Within the ESR variations, Mozilla’s builders have fastened the aforementioned vulnerabilities that had been already current within the legacy code of those browser generations, of which Firefox 140.10 comprises at the least 25 fixes and Firefox 115.35 at the least 10 fixes. Firefox ESR 115 will proceed to obtain safety updates till August 2026.

Thunderbird 150 and 140.10.0esr are additionally resulting from be launched shortly. In these, the builders have likewise fastened dozens of safety vulnerabilities inherited from its Firefox base.