I realized that it often happens when I access pages with buttons that I can use to add files..

Can you at least post your addons so it can be ascertained whether or not alternatives exist. You should at least use the ESR version of Firefox to be sure the error is not from the interaction of Firefox and the OS.

Any crash reports that you get from about:crashes might be useful only if you run a version of Firefox that is being supported, so please update and try again.

You can install the Firefox ESR 52 version which will get security updates into early 2018, to get "more time" using Firefox.

Firefox; Extended Support Release {web link} ESR Notes System Requirements

ESR 45 is also available https://ftp.mozilla.org/pub/firefox/releases/45.9.0esr/

esr ? no thank you, once again, only ff v44.0.2 complies with all of my addons functionalities:

Autofill 3.7c firefox-autofill-fixed-by-scriptkitz@gmail.com Bookmark Favicon Changer 2.29 bug892485_PreventScrollOnHistory 1.1.1-signed.1-signed Classic Theme Restorer 1.5.3 Clean Links 2.7.1-signed.1-signed Close Repeated Tabs 1.0.1-signed.1-signed ColorfulTabs 31.1.9 deskCut 0.6.0.3.1-signed.1-signed Downloads Window 0.6.8 DownThemAll! 3.0.8 Ease Link 1.0.2.5.1-signed.1-signed Easy DragToGo+ SMod 1.1.7.b22 eCleaner 1.4.1-signed.1-let-fixed.1-signed Fasterfox 3.9.85.1-signed.1-signed FlashStopper 1.4.5 Greasemonkey 3.11 Hide Fullscreen Alert 3.1 Image Zoom (ugly fixes) 0.1.1 Keyword Search 1.1.8.3 Link Password 4.0.1.0.1-signed.1-signed Link Status Redux 2.7 Location Bar Enhancer 5.3 Menu Wizard 5.10 Middle Click Tabbar 16.24.03 Mozilla Archive Format 4.0.2 New Tab Homepage 0.5.3 NoUn Buttons 1.1.4.1.1-signed.1-signed Open link in... 1.9.1-signed.1-signed OpenDownload² 4.1.2 Personas Plus 1.8.3 Popup Blocker Ultimate 8.0 Precise Clear History 1.3.1-signed.1-signed Remove Cookies and DOM Storage Button 0.2.2 S3.Google Translator 5.35 Search Engine Creator 1.0.1 SearchWith 0.4.4.1-signed.1-signed Session Manager 0.8.1.13 Show Picture 3.2 Snap Links Plus 2.4.3 Status Box 0.4.2.1-signed.1-signed Stylish 2.0.7 Tab Counter 1.9.9.3 Thumbnail Zoom Plus 4.2 uBlock Origin 1.11.4 UnPlug 2.059 URL Link 2.04.5 YouTube Auto Replay 3.3.1

& the problem's resolved:

downgraded to ublock origin 1.11.4

Using a browser of one year more recent in terms of "security fixes" while not complying with the functionality of my addons, is out of question. I'm not moving from 44.0.2.

If i found an issue in "precise clear history" & "open links in..." that refuse to open links in "background windows" when i have a full set of unrelated tabs..

& 2 context menu references of "open links in..." appear even when i'm not right clicking on a link.. it's enough for me to stop at 44.0.2, cause even if i can't use the web without those functions, i can imagine that it might have "silently" affected more than 2 addons.... .

Esr was tested & issues are found with even v45esr..

useless for me, resolved.

That was very good work. Well done. Please flag your

https://support.mozilla.org/en-US/questions/1174031#answer-1003104

post as Solved Problem so others will know.