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1. #FIREFOX BLOCKING HTTPS IFRAME INSTALL#
2. #FIREFOX BLOCKING HTTPS IFRAME FULL#
3. #FIREFOX BLOCKING HTTPS IFRAME WINDOWS#

#FIREFOX BLOCKING HTTPS IFRAME INSTALL#

#FIREFOX BLOCKING HTTPS IFRAME FULL#

Same site requests will continue to pass the full referring URL. The browser is changing its referrer policy to ensure sites cannot overwrite the default trimming that Firefox applies to cross site URLs. Because it is no longer necessary or prudent to use this encryption algorithm, it is disabled by default in Firefox 93."įirefox 93 is also packing the third version of its SmartBlock technology, which can replace Google Analytics, Optimizely, Criteo, Amazon TAM, and various Google advertising javascript with local versions that behave close enough like the originals to prevent sites from breaking. "As long as 3DES remains an option that Firefox provides, it poses a security and privacy risk.

"Recent measurements indicate that Firefox encounters servers that choose to use 3DES about as often as servers that use deprecated versions of TLS," Mozilla said. The browser has also ended by default support for 3DES encryption but it will still be available when sites use deprecated TLS versions. In the next release of Firefox, an about:unloads page will be added to provide diagnostics on tab unloading.Īlso coming in Firefox 93 is functionality to block HTTP downloads from HTTPS pages, followed by showing a dialog to users warning it is a potential security risk and asking if they wish to continue as well as blocking downloads from sandboxed iframes, unless they have the allow-downloads attribute. But given the clearly improved outcomes for users, we felt there was no point in holding back the feature." "We're working on improving our understanding of this problem and the relevant heuristics. "The increase in OOM crashes, also very counter-intuitive, is harder to explain. browser sessions that had such high memory usage would have crashed and burned in the past, but are now able to survive by unloading tabs just before hitting the critical threshold," the engineer said.

"The latter may seem very counter-intuitive, but is easily explained by survivorship bias.

"We have now approached the problem again by refining our low-memory detection and tab selection algorithm and narrowing the action to the case where we are sure we're providing a user benefit: if the browser is about to crash."Ī month of testing in Firefox's Nightly channel found a decrease in browser and content process-related crashes, but also an increase in out of memory crashes, as well as an increase in average memory usage.

#FIREFOX BLOCKING HTTPS IFRAME WINDOWS#

"We have experimented with tab unloading on Windows in the past, but a problem we could not get past was that finding a balance between decreasing the browser's memory usage and annoying the user because there's a slight delay as the tab gets reloaded, is a rather difficult exercise, and we never got satisfactory results," Aftandilian said. On Windows, the threshold is around the 6% mark, Mozilla engineer Haik Aftandilian wrote in a blog post. Tabs that are in the foreground are never unloaded with tabs that are pinned, using picture-in-picture, or playing sound are less likely to be unloaded. Version 93 of Mozilla's Firefox browser has arrived, and chief among its new features is tab unloading.Īvailable at the moment only on Windows, with macOS and Linux to follow, the feature kicks in when the browser believes an out-of-memory crash is imminent, and it will unload tabs with the least recently used ones unloaded first.