User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0 Steps to reproduce: - fresh Firefox profile - enable "Restore previous session" in Preferences, close tab - disable title bar in Customize..., close tab - Add-ons -> Extensions, search for and install uBlock Origin 1.17.4 - click on uBlock Origin icon in toolbar and click "Open the logger" icon (second from the right, just below "power" button) - close main window - close uBO logger window - reopen Firefox Actual results: Main window and uBO logger window opens. Logger window title bar and buttons missing. Expected results: Title bar and minimize/maximize/close buttons should be present. Related uBO code https://github.com/gorhill/uBlock/blob/c3b0fd31f64bd7ffecdd282fb1208fe07aac3eb0/platform/chromium/vapi-background.js#L497
This is screenshot from uBO 1.17.4, previous was from dev build. My system is Manjaro KDE
I couldn't reproduce this issue on Ubuntu 16.04 uBlock Version 1.17.4 User Agent Mozilla/5.0 (X11; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0 I see no difference in Logger window title bar/ buttons before or after STR from comment 1. I don't see uBlock icon (as mentioned in comment 1) before or after. Please see the attached image. I am placing this under Firefox: Extensions comparability so someone can look into this.
I can also reproduce on: uBO 1.17.4 on Firefox 64 on Lubuntu lxqt 18.10 (buttons present, but no title bar) uBO 1.17.4 on Firefox 65 on Lubuntu lxqt 18.10 and uBO 1.17.4 on Firefox 65 on Mint kde 18.3 but not on uBO 1.17.4 on Firefox 64 on Mint kde 18.3 (these systems have not been updated for few months)
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