Dillo Browser Release 3.3.0

Dillo release 3.3.0 Released on 2026-04-26 Home / Release / 3.3.0 Summary of changes The Dillo 3.3.0 release contains several new features, configuration options and bug fixes. It is the first release to provide experimental support for FLTK 1.4 (see the details below). Control via UNIX socket A new dilloc program is now available to control Dillo from the command line or from a script. It searches for Dillo by the PID in the DILLO_PID environment variable or for a unique Dillo process if not set. You can see the available commands with dilloc help: % dilloc help Commands return 0 on success or non-zero on error. Available commands: ping Check if dillo replies correctly: pid Print PID of selected dillo process reload Reload the current tab ready Exits with 0 if finished loading, 1 otherwise open URL Open the given URL in the current tab url Print the url in the current tab title Print the title of page in the current tab status [MSG] Set the status bar to MSG dump Print the content of the current tab hdump Print the HTTP headers of the current tab load Replace the content in the current tab by stdin rawload Replace the HTTP headers and content of the current tab by stdin quit Close dillo wait [T] Wait until the current tab has finished loading at most T seconds (default 60.0). Wait forever with T set to 0. Page actions We have added the ability to run arbitrary commands from the page menu (right click on the page) with the page_action new option. With page actions, dilloc provides a powerful mechanism to perform page manipulations. Here is an example page action in ~/.dillo/dillorc: page_action="Mimic Chrome:curl_chrome136 $url | dilloc load" When the "Mimic Chrome" option is selected, the current page will be fetched again using curl impersonate to mimic Chrome (which avoids some JS walls) and the output will be piped directly into Dillo as the new HTML of the current page. Another example is the "Fix page" action, which tries to find specific fixes for the current page based on the URL, HTTP headers or other criteria: page_action="Fix page:~/.dillo/actions/fixpage.sh" See the actions git repository to download the fixpage.sh script. FLTK 1.4 experimental support We have added experimental support to build Dillo with FLTK 1.4.0 and higher with the new --enable-experimental-fltk configure flag, so that experienced users and testers can provide technical feedback on different platforms. Be sure to use the latest FLTK 1.4.5 release which contains fixes to solve the problems with blurry fonts. We have similar rendering quality in FLTK 1.4.5 as in FLTK 1.3 on a X11 platform with a 96 DPI screen (both with the Xft and Pango backends), but we still have rendering problems with higher DPIs (specially non-multiple of 96) or with Wayland. You can track the status in the corresponding FLTK issue. Important: If you maintain a Dillo package, do not enable FLTK 1.4 support by default for all users as they will be exposed to visual glitches and other issues. Fixed OAuth login In order to perform the OAuth authentication (for example to login into Fediverse via Smolfedi) we need to allow cookies that are set in a redirection response. By default Dillo blocks all third party cookies that are not caused by a request initiated by the user, so we can prevent tracking by image pixels. We added an exception to also allow cookies from redirections of the main page after the user initiated request, so we can still stay safe against tracking but allow OAuth…

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