Hot on the heels of a fix release of Firefox 96.0.1, which fixes a bug that appeared in Firefox 96 in the code for parsing the "Content-Length" header when using HTTP/3. The error boiled down to the fact that the search for the string "Content-Length:" was case-sensitive, which did not take into account such spellings as "content-length:". The new version also fixes a Windows-specific issue that caused rules to work bypassing proxy settings.
In addition, another issue in the HTTP/3 code, not mentioned in the release note, but fixed in the update, leads to an infinite loop when trying to open sites using the HTTP/3 protocol and when using DoH (DNS over HTTPS).
Additionally, we can note the inclusion in the new version of the Firefox Focus mobile browser for Android of the Total Cookie Protection mode, which implies the use of a separate isolated storage for Cookies for each site, which does not allow using Cookies to track movement between sites, since all Cookies , set from third-party blocks loaded on the site (iframe, js, etc.), are tied to the main site and are not transmitted when accessing these blocks from other sites.
To address issues on sites that block external scripts, Firefox Focus also adds support for the SmartBlock mechanism, which automatically replaces tracking scripts with stubs that ensure the site loads correctly. Stubs have been prepared for some popular Disconnect-listed user tracking scripts, including scripts with Facebook, Twitter, Yandex, Vkontakte, and Google widgets.
Recall that the Firefox Focus browser is focused on ensuring privacy and giving the user full control over their data. Firefox Focus has built-in tools to block inappropriate content, including ads, social media widgets, and external JavaScript to track movement. Blocking third-party code significantly reduces the amount of downloaded materials and has a positive effect on page loading speed. For example, compared to the mobile version of Firefox for Android, pages in Focus load 20% faster on average. The browser also has a button to quickly close a tab, clearing all associated logs, cache entries, and cookies. Of the shortcomings, the lack of support for add-ons, tabs and bookmarks stands out.
Firefox Focus is enabled by default to send telemetry with depersonalized statistics about user behavior. Information about collecting statistics is explicitly indicated in the settings and can be disabled by the user. In addition to telemetry, after installing the browser, information is sent about the source of the application (ad campaign ID, IP address, country, locale, OS). In the future, if you do not disable the mode of sending statistics, information about the frequency of application use is periodically sent. The data includes information about the activity of the application call, the settings used, the frequency of opening pages from the address bar, the frequency of sending search requests (information about which sites are opened is not transmitted). The statistics are sent to the servers of a third-party company, Adjust GmbH, which also has data on the IP address of the device.
Source: opennet.ru