diff --git a/build-aux/share/portproton/scripts/functions_helper b/build-aux/share/portproton/scripts/functions_helper
index f05ff452..bcb2eab9 100755
--- a/build-aux/share/portproton/scripts/functions_helper
+++ b/build-aux/share/portproton/scripts/functions_helper
@@ -459,6 +459,26 @@ try_download () {
                 no_mirror=true
     esac
 
+    local curl_proxy_args=()
+    local _pp_conf=""
+    if [[ -n "${XDG_CONFIG_HOME:-}" ]] \
+    && [[ -f "$XDG_CONFIG_HOME/PortProtonQt.conf" ]] ; then
+        _pp_conf="$XDG_CONFIG_HOME/PortProtonQt.conf"
+    elif [[ -f "$HOME/.config/PortProtonQt.conf" ]] ; then
+        _pp_conf="$HOME/.config/PortProtonQt.conf"
+    fi
+    local _pp_url="" _pp_user="" _pp_pass=""
+    if [[ -n "$_pp_conf" ]] ; then
+        _pp_url="$(grep "proxy_url" "$_pp_conf" | awk -F"= " '{print $2}')"
+        if [[ -n "$_pp_url" ]] ; then
+            curl_proxy_args=(-x "$_pp_url")
+            _pp_user="$(grep "proxy_user" "$_pp_conf" | awk -F"= " '{print $2}')"
+            _pp_pass="$(grep "proxy_password" "$_pp_conf" | awk -F"= " '{print $2}')"
+            [[ -n "$_pp_user" && -n "$_pp_pass" ]] \
+                && curl_proxy_args+=(-u "$_pp_user:$_pp_pass")
+        fi
+    fi
+
     local filename
     if [[ -n "${PW_AUTOINSTALL_EXE}" ]] \
     && [[ "$no_mirror" == "true" ]]
@@ -482,7 +502,7 @@ try_download () {
     if check_gamescope_session ; then
         $PW_TERM "echo ; echo ; echo \"Downloading: $filename. Please wait...\" \
         ; curl -f -# --connect-timeout 5 --speed-limit 1 --speed-time 5 -A 'Mozilla/5.0 (compatible; Konqueror/2.1.1; X11)' -H 'Cache-Control: no-cache, no-store' \
-        -H 'Pragma: no-cache' -L ${FIRST_URL[*]} -o \"$dest\""
+        -H 'Pragma: no-cache' -L ${FIRST_URL[*]} -o \"$dest\" ${curl_proxy_args[*]}"
 
 
         [[ "$?" != 0 ]] && return 1 || return 0
@@ -491,10 +511,10 @@ try_download () {
     # Normal download
     print_info "Download $filename from ${FIRST_URL[0]}..."
     if [[ "$silent" == "true" ]] ; then
-        curl -f -# --connect-timeout 5 --speed-limit 1 --speed-time 5 -A 'Mozilla/5.0 (compatible; Konqueror/2.1.1; X11)' -H 'Cache-Control: no-cache, no-store' \
+        curl "${curl_proxy_args[@]}" -f -# --connect-timeout 5 --speed-limit 1 --speed-time 5 -A 'Mozilla/5.0 (compatible; Konqueror/2.1.1; X11)' -H 'Cache-Control: no-cache, no-store' \
         -H 'Pragma: no-cache' -L "${FIRST_URL[@]}" -o "$dest" 2>&1
     else
-        curl -f -# --connect-timeout 5 --speed-limit 1 --speed-time 5 -A 'Mozilla/5.0 (compatible; Konqueror/2.1.1; X11)' -H 'Cache-Control: no-cache, no-store' \
+        curl "${curl_proxy_args[@]}" -f -# --connect-timeout 5 --speed-limit 1 --speed-time 5 -A 'Mozilla/5.0 (compatible; Konqueror/2.1.1; X11)' -H 'Cache-Control: no-cache, no-store' \
         -H 'Pragma: no-cache' -L "${FIRST_URL[@]}" -o "$dest" 2>&1 \
         | tr '\r' '\n' | sed -ur 's|[# ]+||g;s|100||g;s|0-||g;s|.*=.*||g'